2177-6059 2177-6059 S2177-60592017000300477 10.18593/r.v42i3.13665 Brazil Brazil Brazil 00 12 2017 00 12 2017 42 3 477 496

10 1 1 3-25 45 1 1 43-70 21 21 21 62 62 14-5 8 1 1 28 28 107-24 27 1 1 93-112 38 2 2 48 4 4 483-510