2177-6059 2177-6059 S2177-60592015000200437 10.18593/r.v40i2.6716 Brazil Brazil 00 12 2015 00 12 2015 40 2 437 460

47 47 125-43 33 3 3 531-41 20 44 44 473-92 31 3 3 217-22