0121-4500 0121-4500 S0121-45002020000400007 10.15446/av.enferm.v38n1supl.95723 Bélgica 00 12 2020 00 12 2020 38 7 9 (1) (2) 2020 (3) 2003 (4) 2009 23 2 2 112-22 (5) 2010 8 3 3 280-7