Paralytic poliomyelitis in children: some facts and figures from a hospital at Calcutta--1.
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007194:India; D007223:Infant; D007231:Infant, Newborn; D008137:Longitudinal Studies; D011051:Poliomyelitis / Q000453:epidemiology