1982-7806 1982-7806 S1982-78062020000301096 10.14393/che-v19n3-2020-26 Brazil 00 09 2020 00 09 2020 19 3 1096 1102 2010 2009 4ª 1981 2004 30 1 1 139-59 1982 2007 2º 2010 1998 1982 2011 31 62 62 49-70