0102-7735 0102-7735 S0102-77352014000200099 10.5238/2015v49i350006 Brazil 00 05 2014 00 05 2014 49 35 99 126

66 66 41-8 34 34 41-56 90 90 100-09 32 1 1 21-40 138 138 125-34 15 44 44 329-41 25 25 5-17 27 27 93-102