2177-6059 2177-6059 S2177-60592016000200451 10.18593/r.v41i2.9566 Brazil Brazil 00 05 2016 00 05 2016 41 2 451 473

17 32 32 179-91 9 4 4 985-1006 8 2 2 176-89 25 89 89 1227-249 16 60 60 337-58 1 1 1 16-28