1983-2117 1983-2117 S1983-21172009000200005 10.1590/1983-21172009110205 Brazil Brazil 00 12 2009 00 12 2009 11 2 230 244

10 3 3 363-81 3. ed 1-8 22 3 3 455-62 8. ed 471-93 60-81 2 2 2 1-23 46-71