2236-3459 2236-3459 S2236-34592014000100093 10.1590/S2236-34592014000100006 Brazil 00 04 2014 00 04 2014 18 42 93 113

1 2 2 360-79 XXXVIII 1 1 51-72 1 353-82 19 19 121-39 22 1 1 17-39 14 14 61-88