[Relative immunity to poliomyelitis in children from 0 to 10, after the 4th National Polio Vaccination Day with trivalent oral type Sabin vaccination, in the area of greater São Paulo, SP (Brazil), 1982].
作者信息
Barbosa V, Waldman E A, Fujita M, Kitamura C, Waldman C C, Lacerda J P