Oral poliovaccine and paralysis.
D002675:Child, Preschool; D006801:Humans; D008297:Male; D010243:Paralysis / Q000209:etiology*; D011051:Poliomyelitis / Q000209:etiology*; D011055:Poliovirus Vaccine, Oral / Q000009:adverse effects*
D011055:Poliovirus Vaccine, Oral