2177-6059 2177-6059 S2177-60592017000200281 10.18593/r.v42i2.13265 Brazil Brazil 00 08 2017 00 08 2017 42 2 281 310

30 108 108 799-818 17 17 86-101 103 27 27 10155-0162 13 2 2 234-55 2 5 5 102-22