1676-2592 1676-2592 S1676-25922014000300458 10.0000/016v03n7p458 Brazil Brazil Brazil 00 09 2014 00 09 2014 16 3 458 474

27 96 96 819-42 20 68 68 220-38 8 1 1 3-16 37 130 130 99-134 14 17 17 79-109