1983-2117 1983-2117 S1983-21172000000100099 10.1590/1983-21172000020107 Brazil Brazil Brazil Brazil 00 06 2000 00 06 2000 2 1 99 122

7 1-20 17 119-40 160-78 2 1 1 6-15 4 3 3 7 1 1 37-45 5 2 2 3-16