2178-4612 2178-4612 S2178-46122016000300604 10.18226/21784612.v21.n3.08 Brazil Brasil 00 12 2016 00 12 2016 21 3 604 627

23 79 79 257-72 16 1 1 17-35 11 23 23 67-96 22 40 40 5-25 12 3 3 164-214 15 30 30