<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2341-4545</journal-id>
<journal-title><![CDATA[GE-Portuguese Journal of Gastroenterology]]></journal-title>
<abbrev-journal-title><![CDATA[GE Port J Gastroenterol]]></abbrev-journal-title>
<issn>2341-4545</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Gastrenterologia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2341-45452022000200020</article-id>
<article-id pub-id-type="doi">10.1159/000516945</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[How Can Patient&#8217;s Risk Dictate the Timing of Endoscopy in Upper Gastrointestinal Bleeding?]]></article-title>
<article-title xml:lang="pt"><![CDATA[Como é que o risco do paciente pode ditar o timing da endoscopia na hemorragia digestiva alta?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Freitas]]></surname>
<given-names><![CDATA[Marta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Vítor Macedo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonçalves]]></surname>
<given-names><![CDATA[Tiago Cúrdia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marinho]]></surname>
<given-names><![CDATA[Carla]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cotter]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A3"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital da Senhora da Oliveira Gastroenterology Department ]]></institution>
<addr-line><![CDATA[Guimarães ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Minho School of Medicine Life and Health Sciences Research Institute (ICVS)]]></institution>
<addr-line><![CDATA[Braga ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,ICVS/3B&#8217;s, PT Government Associate Laboratory  ]]></institution>
<addr-line><![CDATA[Braga/Guimarães ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>29</volume>
<numero>2</numero>
<fpage>20</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452022000200020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452022000200020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452022000200020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Although upper gastrointestinal bleeding (UGIB) management has improved substantially in the last decades, there is still much controversy regarding the optimal timing for performance of endoscopy. Recent guidelines suggest performing an early endoscopy within 24 h of nonvariceal UGIB (NVUGIB) presentation, although its impact on patients with different bleeding risks remains unclear.  Aim:  To evaluate the impact of performing endoscopy within 24 h on NVUGIB outcomes and to compare it in patients with lower-risk vs. higher-risk bleeding.  Methods:  This is a retrospective cohort study including consecutive patients undergoing upper endoscopy for suspected NVUGIB over 4 years. Demographic, clinical, biochemical, endoscopic, and outcome data were collected. Lower-risk bleeding was defined as a Glasgow-Blatchford score (GBS) &lt;12 and higher-risk bleeding was defined as a GBS &#8805;12.  Results:  A total of 298 patients with suspected NVUGIB were included, 55% of whom had higher-risk bleeding. Endoscopy was performed within 24 h in 62.1% of the patients. In lower-risk bleeding patients, performance of endoscopy within 24 h was associated with a higher need for endoscopic treatment (OR = 2.6; 95% CI 1.2-5.7; p = 0.004), a lower 30-day mortality (OR = 0.41; 95% CI 0.27-0.63; p = 0.03), and a lower need for transfusion (OR = 0.58; 95% CI 0.36-0.92; p = 0.02). In higher-risk bleeding patients, there were no statistically significant differences in NVUGIB outcomes in performing endoscopy within 24 h.  Conclusion:  Endoscopy within 24 h of presentation was associated with a lower need for transfusion, a higher need for endoscopic treatment, and a lower 30-day mortality in lower-risk NVUGIB patients. Thus, performing endoscopy within the first 24 h of presentation can have a positive impact on NVUGIB outcomes even in lower-risk bleeding.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Introdução:  Embora a abordagem da hemorragia digestiva alta não varicosa [HDANV] tenha melhorado substancialmente nas últimas décadas, há ainda muita contro vérsia relativamente ao timing ideal de realização da endoscopia. Apesar das guidelines recentes sugerirem a realização de endoscopia precoce nas primeiras 24 horas de apresentação, o seu impacto em pacientes com estra tificações de risco distintas permanece por esclarecer.  Objetivo:  Avaliar o impacto da realização de endoscopia precoce nos diferentes outcomes de HDA não varicosa em doentes de baixo e alto risco.  Métodos:  Estudo de coorte retrospetivo incluindo pacientes submetidos consecutivamente a endoscopia por suspeita de HDANV, durante 4 anos. Foram obtidos dados demográficos, clínicos, bioquímicos, endoscópicos e outcomes adversos. Baixo risco foi definido como score Glasgow-Blatchford &lt;12 e alto risco como &#8805;12.  Resultados:  Foram incluídos 298 pacientes, 55% sendo de alto risco. A endoscopia foi efetuada nas primeiras 24 horas em 62.1% dos pacientes. Em doentes de baixo risco, realizar endoscopia nas primeiras 24 horas associou-se a maior necessidade de terapêutica endoscópica [OR 2.6, IC 1.2-5.7; p = 0.004], menor mortalidade a 30 dias [OR 0.41, IC 0.27-0.63; p = 0.03] e menor necessidade de transfusão [OR 0.58, IC 0.36-0.92; p = 0.02]. Em doentes de alto risco não houve diferenças estatisticamente significativas nos outcomes pelo facto de efetuar endoscopia precoce.  Conclusão:  Realizar endoscopia nas primeiras 24 horas de apresentação de HDANV foi associado a menor necessidade de transfusão, maior necessidade de terapêutica endoscópica e menor mortalidade a 30 dias em pacientes de baixo risco. Assim, efetuar endoscopia precoce pode ter um impacto positivo nos outcomes da HDANV, mesmo nos doentes que à partida têm menor risco de outcomes adversos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Nonvariceal upper gastrointestinal bleeding]]></kwd>
<kwd lng="en"><![CDATA[Upper endoscopy]]></kwd>
<kwd lng="en"><![CDATA[Timing of endoscopy]]></kwd>
<kwd lng="pt"><![CDATA[Hemorragia digestiva alta não varicosa]]></kwd>
<kwd lng="pt"><![CDATA[Endoscopia digestiva alta]]></kwd>
<kwd lng="pt"><![CDATA[Timing da endoscopia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Yang]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Datto]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trends for incidence of hospitalization and death due to GI complications in the United States from 2001 to 2009]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2012</year>
<volume>107</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1190-5</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosenstock]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Møller]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Larsson]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Johnsen]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
<name>
<surname><![CDATA[Madsen]]></surname>
<given-names><![CDATA[AH]]></given-names>
</name>
<name>
<surname><![CDATA[Bendix]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Improving quality of care in peptic ulcer bleeding nationwide cohort study of 13,498 consecutive patients in the Danish Clinical Register of Emergency Surgery]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2013</year>
<volume>108</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1449-57</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hearnshaw]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Logan]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Lowe]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Travis]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
<name>
<surname><![CDATA[Murphy]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Palmer]]></surname>
<given-names><![CDATA[KR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute upper gastrointestinal bleeding in the UK patient characteristics, diagnoses and outcomes in the 2007 UK audit]]></article-title>
<source><![CDATA[Gut]]></source>
<year>2011</year>
<volume>60</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1327-35</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oakland]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changing epidemiology and etiology of upper and lower gastrointestinal bleeding]]></article-title>
<source><![CDATA[Best Pract Res Clin Gastroenterol]]></source>
<year>2019</year>
<page-range>42-3</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chak]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Cooper]]></surname>
<given-names><![CDATA[GS]]></given-names>
</name>
<name>
<surname><![CDATA[Lloyd]]></surname>
<given-names><![CDATA[LE]]></given-names>
</name>
<name>
<surname><![CDATA[Kolz]]></surname>
<given-names><![CDATA[CS]]></given-names>
</name>
<name>
<surname><![CDATA[Barnhart]]></surname>
<given-names><![CDATA[BA]]></given-names>
</name>
<name>
<surname><![CDATA[Wong]]></surname>
<given-names><![CDATA[RC]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effectiveness of endoscopy in patients admitted to the intensive care unit with upper GI hemorrhage]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2001</year>
<volume>53</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>6-13</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kanwal]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Barkun]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Gralnek]]></surname>
<given-names><![CDATA[IM]]></given-names>
</name>
<name>
<surname><![CDATA[Asch]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Kuipers]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Bardou]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measuring quality of care in patients with nonvariceal upper gastrointestinal hemorrhage development of an explicit quality indicator set]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2010</year>
<volume>105</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1710-8</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gralnek]]></surname>
<given-names><![CDATA[IM]]></given-names>
</name>
<name>
<surname><![CDATA[Dumonceau]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Kuipers]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lanas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sanders]]></surname>
<given-names><![CDATA[DS]]></given-names>
</name>
<name>
<surname><![CDATA[Kurien]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnosis and management of nonvariceal upper gastrointestinal hemorrhage European Society of Gastrointestinal Endoscopy (ESGE) Guideline]]></article-title>
<source><![CDATA[Endoscopy]]></source>
<year>2015</year>
<volume>47</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>a1-46</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hwang]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Fisher]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
<name>
<surname><![CDATA[Ben-Menachem]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Chandrasekhara]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Chathadi]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Decker]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The role of endoscopy in the management of acute non-variceal upper GI bleeding]]></article-title>
<collab>Standards of Practice Committee of the American Society for Gastrointestinal Endoscopy</collab>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2012</year>
<volume>75</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1132-8</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Jensen]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of patients with ulcer bleeding]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2012</year>
<volume>107</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>345-60</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stanley]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of acute upper gastrointestinal bleeding]]></article-title>
<source><![CDATA[BMJ]]></source>
<year>2019</year>
<volume>364</volume>
<page-range>l536</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barkun]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Almadi]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kuipers]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Sung]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Tse]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of Nonvariceal Upper Gastrointestinal Bleeding Guideline Recommendations From the International Consensus Group]]></article-title>
<source><![CDATA[Ann Intern Med]]></source>
<year>2019</year>
<volume>171</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>805-22</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Barkun]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[Bardou]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kuipers]]></surname>
<given-names><![CDATA[EJ]]></given-names>
</name>
<name>
<surname><![CDATA[Sung]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Hunt]]></surname>
<given-names><![CDATA[RH]]></given-names>
</name>
<name>
<surname><![CDATA[Martel]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[International consensus recommendations on the management of patients with nonvariceal upper gastrointestinal bleeding]]></article-title>
<collab>International Consensus Upper Gastrointestinal Bleeding Conference Group</collab>
<source><![CDATA[Ann Intern Med]]></source>
<year>2010</year>
<volume>152</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>101-13</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Spiegel]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
<name>
<surname><![CDATA[Vakil]]></surname>
<given-names><![CDATA[NB]]></given-names>
</name>
<name>
<surname><![CDATA[Ofman]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endoscopy for acute nonvariceal upper gastrointestinal tract hemorrhage is sooner better? A systematic review]]></article-title>
<source><![CDATA[Arch Intern Med]]></source>
<year>2001</year>
<volume>161</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1393-404</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tsoi]]></surname>
<given-names><![CDATA[KK]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[TK]]></given-names>
</name>
<name>
<surname><![CDATA[Sung]]></surname>
<given-names><![CDATA[JJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endoscopy for upper gastrointestinal bleeding how urgent is it?]]></article-title>
<source><![CDATA[Nat Rev Gastroenterol Hepatol]]></source>
<year>2009</year>
<volume>6</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>463-9</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wysocki]]></surname>
<given-names><![CDATA[JD]]></given-names>
</name>
<name>
<surname><![CDATA[Srivastav]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Winstead]]></surname>
<given-names><![CDATA[NS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A nationwide analysis of risk factors for mortality and time to endoscopy in upper gastrointestinal haemorrhage]]></article-title>
<source><![CDATA[Aliment Pharmacol Ther]]></source>
<year>2012</year>
<volume>36</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>30-6</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garcia-Tsao]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Abraldes]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Berzigotti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Bosch]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Portal hypertensive bleeding in cirrhosis Risk stratification, diagnosis, and management: 2016 practice guidance by the American Association for the study of liver diseases]]></article-title>
<source><![CDATA[Hepatology]]></source>
<year>2017</year>
<volume>65</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>310-35</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[de Franchis]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Baveno Faculty]]></surname>
<given-names><![CDATA[VI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Expanding consensus in portal hypertension Report of the Baveno VI Consensus Workshop: Stratifying risk and individualizing care for portal hypertension.]]></article-title>
<source><![CDATA[J Hepatol]]></source>
<year>2015</year>
<volume>63</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>743-52</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lim]]></surname>
<given-names><![CDATA[LG]]></given-names>
</name>
<name>
<surname><![CDATA[Ho]]></surname>
<given-names><![CDATA[KY]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[YH]]></given-names>
</name>
<name>
<surname><![CDATA[Teoh]]></surname>
<given-names><![CDATA[PL]]></given-names>
</name>
<name>
<surname><![CDATA[Khor]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lim]]></surname>
<given-names><![CDATA[LL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Urgent endoscopy is associated with lower mortality in high-risk but not lowrisk nonvariceal upper gastrointestinal bleeding]]></article-title>
<source><![CDATA[Endoscopy]]></source>
<year>2011</year>
<volume>43</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>300-6</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[NL]]></given-names>
</name>
<name>
<surname><![CDATA[Cohen]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Nayor]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Claggett]]></surname>
<given-names><![CDATA[BL]]></given-names>
</name>
<name>
<surname><![CDATA[Saltzman]]></surname>
<given-names><![CDATA[JR.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Timing of upper endoscopy influences outcomes in patients with acute nonvariceal upper GI bleeding]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2017</year>
<volume>85</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>945-52</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laursen]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Leontiadis]]></surname>
<given-names><![CDATA[GI]]></given-names>
</name>
<name>
<surname><![CDATA[Stanley]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Møller]]></surname>
<given-names><![CDATA[MH]]></given-names>
</name>
<name>
<surname><![CDATA[Hansen]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Schaffalitzky de Muckadell]]></surname>
<given-names><![CDATA[OB]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Relationship between timing of endoscopy and mortality in patients with peptic ulcer bleeding: a nationwide cohort study.]]></article-title>
<source><![CDATA[Gastrointest Endosc]]></source>
<year>2017</year>
<volume>85</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>936-44</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Simon]]></surname>
<given-names><![CDATA[TG]]></given-names>
</name>
<name>
<surname><![CDATA[Travis]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Saltzman]]></surname>
<given-names><![CDATA[JR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Initial Assessment and Resuscitation in Nonvariceal Upper Gastrointestinal Bleeding]]></article-title>
<source><![CDATA[Gastrointest Endosc Clin N Am]]></source>
<year>2015</year>
<volume>25</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>429-42</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Charlson]]></surname>
<given-names><![CDATA[ME]]></given-names>
</name>
<name>
<surname><![CDATA[Pompei]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Ales]]></surname>
<given-names><![CDATA[KL]]></given-names>
</name>
<name>
<surname><![CDATA[MacKenzie]]></surname>
<given-names><![CDATA[CR]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A new method of classifying prognostic comorbidity in longitudinal studies development and validation]]></article-title>
<source><![CDATA[J Chronic Dis]]></source>
<year>1987</year>
<volume>40</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>373-83</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blatchford]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Murray]]></surname>
<given-names><![CDATA[WR]]></given-names>
</name>
<name>
<surname><![CDATA[Blatchford]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A risk score to predict need for treatment for upper-gastrointestinal haemorrhage]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2000</year>
<volume>356</volume>
<numero>9238</numero>
<issue>9238</issue>
<page-range>1318-21</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lau]]></surname>
<given-names><![CDATA[JY]]></given-names>
</name>
<name>
<surname><![CDATA[Yu]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[RS]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[HC]]></given-names>
</name>
<name>
<surname><![CDATA[Yip]]></surname>
<given-names><![CDATA[HC]]></given-names>
</name>
<name>
<surname><![CDATA[Chan]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Timing of Endoscopy for Acute Upper Gastrointestinal Bleeding]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2020</year>
<volume>382</volume>
<numero>14</numero>
<issue>14</issue>
<page-range>1299-308</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[SH]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[YS]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[YJ]]></given-names>
</name>
<name>
<surname><![CDATA[Sohn]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
<name>
<surname><![CDATA[Ahn]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Seo]]></surname>
<given-names><![CDATA[DW]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcomes and Role of Urgent Endoscopy in High-Risk Patients With Acute Nonvariceal Gastrointestinal Bleeding]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2018</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>370-7</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Perng]]></surname>
<given-names><![CDATA[CL]]></given-names>
</name>
<name>
<surname><![CDATA[Chua]]></surname>
<given-names><![CDATA[RT]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[FY]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Early or delayed endoscopy for patients with peptic ulcer bleeding A prospective randomized study]]></article-title>
<source><![CDATA[J Clin Gastroenterol]]></source>
<year>1996</year>
<volume>22</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>267-71</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Upper Gastrointestinal Bleeding Due to a Peptic Ulcer]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2016</year>
<volume>375</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1198</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jairath]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Kahan]]></surname>
<given-names><![CDATA[BC]]></given-names>
</name>
<name>
<surname><![CDATA[Logan]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Hearnshaw]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Doré]]></surname>
<given-names><![CDATA[CJ]]></given-names>
</name>
<name>
<surname><![CDATA[Travis]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcomes following acute nonvariceal upper gastrointestinal bleeding in relation to time to endoscopy results from a nationwide study.]]></article-title>
<source><![CDATA[Endoscopy]]></source>
<year>2012</year>
<volume>44</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>723-30</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cúrdia Gonçalves]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Barbosa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Xavier]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Boal Carvalho]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Firmino Machado]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Magalhães]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Optimizing the Risk Assessment in Upper Gastrointestinal Bleeding Comparison of 5 Scores Predicting 7 Outcomes]]></article-title>
<source><![CDATA[GE Port J Gastroenterol]]></source>
<year>2018</year>
<volume>25</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>299-307</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stanley]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Laine]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Dalton]]></surname>
<given-names><![CDATA[HR]]></given-names>
</name>
<name>
<surname><![CDATA[Ngu]]></surname>
<given-names><![CDATA[JH]]></given-names>
</name>
<name>
<surname><![CDATA[Schultz]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Abazi]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of risk scoring systems for patients presenting with upper gastrointestinal bleeding international multicentre prospective study]]></article-title>
<collab>International Gastrointestinal Bleeding Consortium</collab>
<source><![CDATA[BMJ]]></source>
<year>2017</year>
<volume>356</volume>
<page-range>i6432</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Shen]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Zhou]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Tang]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[You]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Scoring systems used to predict mortality in patients with acute upper gastrointestinal bleeding in the ED]]></article-title>
<source><![CDATA[Am J Emerg Med]]></source>
<year>2018</year>
<volume>36</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>27-32</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blatchford]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Davidson]]></surname>
<given-names><![CDATA[LA]]></given-names>
</name>
<name>
<surname><![CDATA[Murray]]></surname>
<given-names><![CDATA[WR]]></given-names>
</name>
<name>
<surname><![CDATA[Blatchford]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Pell]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Acute upper gastrointestinal haemorrhage in west of Scotland case ascertainment study]]></article-title>
<source><![CDATA[BMJ]]></source>
<year>1997</year>
<volume>315</volume>
<numero>7107</numero>
<issue>7107</issue>
<page-range>510-4</page-range></nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Stanley]]></surname>
<given-names><![CDATA[AJ]]></given-names>
</name>
<name>
<surname><![CDATA[Ashley]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Dalton]]></surname>
<given-names><![CDATA[HR]]></given-names>
</name>
<name>
<surname><![CDATA[Mowat]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Gaya]]></surname>
<given-names><![CDATA[DR]]></given-names>
</name>
<name>
<surname><![CDATA[Thompson]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outpatient management of patients with low-risk uppergastrointestinal haemorrhage multicentre validation and prospective evaluation]]></article-title>
<source><![CDATA[Lancet]]></source>
<year>2009</year>
<volume>373</volume>
<numero>9657</numero>
<issue>9657</issue>
<page-range>42-7</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>34</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[IC]]></given-names>
</name>
<name>
<surname><![CDATA[Hung]]></surname>
<given-names><![CDATA[MS]]></given-names>
</name>
<name>
<surname><![CDATA[Chiu]]></surname>
<given-names><![CDATA[TF]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Hsiao]]></surname>
<given-names><![CDATA[CT]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Risk scoring systems to predict need for clinical intervention for patients with nonvariceal upper gastrointestinal tract bleeding]]></article-title>
<source><![CDATA[Am J Emerg Med]]></source>
<year>2007</year>
<volume>25</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>774-9</page-range></nlm-citation>
</ref>
<ref id="B35">
<label>35</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alexandrino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Domingues]]></surname>
<given-names><![CDATA[TD]]></given-names>
</name>
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Costa]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
<name>
<surname><![CDATA[Lourenço]]></surname>
<given-names><![CDATA[LC]]></given-names>
</name>
<name>
<surname><![CDATA[Reis]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endoscopy Timing in Patients with Acute Upper Gastrointestinal Bleeding]]></article-title>
<source><![CDATA[Clin Endosc]]></source>
<year>2019</year>
<volume>52</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>47-52</page-range></nlm-citation>
</ref>
<ref id="B36">
<label>36</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bell]]></surname>
<given-names><![CDATA[CM]]></given-names>
</name>
<name>
<surname><![CDATA[Redelmeier]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mortality among patients admitted to hospitals on weekends as compared with weekdays]]></article-title>
<source><![CDATA[N Engl J Med]]></source>
<year>2001</year>
<volume>345</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>663-8</page-range></nlm-citation>
</ref>
<ref id="B37">
<label>37</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ananthakrishnan]]></surname>
<given-names><![CDATA[AN]]></given-names>
</name>
<name>
<surname><![CDATA[McGinley]]></surname>
<given-names><![CDATA[EL]]></given-names>
</name>
<name>
<surname><![CDATA[Saeian]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Outcomes of weekend admissions for upper gastrointestinal hemorrhage: a nationwide analysis]]></article-title>
<source><![CDATA[Clin Gastroenterol Hepatol]]></source>
<year>2009</year>
<volume>7</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>296-302</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>38</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kostis]]></surname>
<given-names><![CDATA[WJ]]></given-names>
</name>
<name>
<surname><![CDATA[Demissie]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Marcella]]></surname>
<given-names><![CDATA[SW]]></given-names>
</name>
<name>
<surname><![CDATA[Shao]]></surname>
<given-names><![CDATA[YH]]></given-names>
</name>
<name>
<surname><![CDATA[Wilson]]></surname>
<given-names><![CDATA[AC]]></given-names>
</name>
<name>
<surname><![CDATA[Moreyra]]></surname>
<given-names><![CDATA[AE]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Weekend versus weekday admission and mortality from myocardial infarction]]></article-title>
<collab>Myocardial Infarction Data Acquisition System Study Group</collab>
<source><![CDATA[N Engl J Med]]></source>
<year>2007</year>
<volume>356</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1099-109</page-range></nlm-citation>
</ref>
<ref id="B39">
<label>39</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jairath]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Kahan]]></surname>
<given-names><![CDATA[BC]]></given-names>
</name>
<name>
<surname><![CDATA[Logan]]></surname>
<given-names><![CDATA[RF]]></given-names>
</name>
<name>
<surname><![CDATA[Hearnshaw]]></surname>
<given-names><![CDATA[SA]]></given-names>
</name>
<name>
<surname><![CDATA[Travis]]></surname>
<given-names><![CDATA[SP]]></given-names>
</name>
<name>
<surname><![CDATA[Murphy]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mortality from acute upper gastrointestinal bleeding in the United kingdom does it display a &amp;raquo;,» &amp;reg;,® &amp;sect;,§ &amp;shy;,­ &amp;sup1;,¹ &amp;sup2;,² &amp;sup3;,³ &amp;szlig;,ß &amp;THORN;,Þ &amp;thorn;,þ &amp;times;,× &amp;Uacute;,Ú &amp;uacute;,ú &amp;Ucirc;,Û &amp;ucirc;,û &amp;Ugrave;,Ù &amp;ugrave;,ù &amp;uml;,¨ &amp;Uuml;,Ü &amp;uuml;,ü &amp;Yacute;,Ý &amp;yacute;,ý &amp;yen;,¥ &amp;yuml;,ÿ &amp;para;,¶ weekend effect &amp;raquo;,» &amp;reg;,® &amp;sect;,§ &amp;shy;,­ &amp;sup1;,¹ &amp;sup2;,² &amp;sup3;,³ &amp;szlig;,ß &amp;THORN;,Þ &amp;thorn;,þ &amp;times;,× &amp;Uacute;,Ú &amp;uacute;,ú &amp;Ucirc;,Û &amp;ucirc;,û &amp;Ugrave;,Ù &amp;ugrave;,ù &amp;uml;,¨ &amp;Uuml;,Ü &amp;uuml;,ü &amp;Yacute;,Ý &amp;yacute;,ý &amp;yen;,¥ &amp;yuml;,ÿ &amp;para;,¶ ?]]></article-title>
<source><![CDATA[Am J Gastroenterol]]></source>
<year>2011</year>
<volume>106</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1621-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
