2184-0628 2184-0628 S2184-06282020000400333 10.29315/gm.v7i4.408 Portugal 30 12 2020 30 12 2020 7 4 333 334 1 2001 10 45-55 2 2002 11 253-61 3 2017 24 290-5 4 2014 12 128-41 5 2012 197 512-9 6 2009 11 1208-13 7 2006 54 1355-63 8 2008 56 117-23 9 2018 25 15-7