0101-7136 0101-7136 S0101-71362015000200337 10.5216/ia.v40i2.32758 Brazil Brazil Brazil 00 05 2015 00 05 2015 40 2 337 351

23 67 67 101-16 7 1 1 211-31 8 4 4 953-61 17 2 2 323-50 4 1 1 25-59 22 6 6 1335-342 17 2 2 253-58 8 3 3 567-90 20 1 1 148-55