2238-2097 2238-2097 S2238-20972017000300839 10.5965/01045962v26n632017839 Brazil Brazil 00 09 2017 00 09 2017 26 63 839 853

55 55 47-68 2 2 104-17 114 114 179-95 20 especial 61-9 1 1 1 21 64 64 especial 3 3 127-44 5 1 1 12 2 2