0104-7043 0104-7043 S0104-70432016000300105 10.2015/01047043v25n472016105 Brazil Brazil 00 12 2016 00 12 2016 25 47 105 118

17 49 49 14 40 40 168-94 58 4 4 2 3 3 1-28 16 30 30 89-108 2 4 4 97-104 39 2 2 403-17 2 4 4 38-47