[Poliomyelitis surveillance in 1968-1969].
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003604:Czechoslovakia; D006306:Health Surveys; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010243:Paralysis / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology*; D013997:Time Factors
Surveillance poliomyelitidy v roce 1968-1969.