1984-6444 1984-6444 S1984-64442016000300645 10.5902/1984644417918 Brasil 00 12 2016 00 12 2016 41 3 645 656

19 44 44 19-32 23 36 36 26-44 13 1 1 14-23 20 68 68 163-83 25 3 3 497-511 12 25 25 67-84