2184-7770 2184-7770 S2184-77702021000400172 10.36367/ntqr.9.2021.172-180 Portugal Brazil Portugal Portugal Brazil 30 06 2021 30 06 2021 9 172 180

2020 1977 2010 1984 55 83-96 2009 2020 1-7 Fundação Oswaldo Cruz 2020 2020 Instituto de apoio à Criança 2020 2014 2017 47 165 165 1044-66 2009 28 51-71 2015 25-43 2020 51 3-4 3-4 2020 b 24 1 1 12-28 2020 19 1-5 World Health Organization, W. H. 2020