[The epidemiology of poliomyelitis-like diseases in Bulgaria during 1975].
D000293:Adolescent; D002031:Bulgaria; D002493:Central Nervous System Diseases / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008581:Meningitis / Q000453:epidemiology; D011051:Poliomyelitis / Q000453:epidemiology; D012189:Retrospective Studies
K epidemii poliomyelitidĕ podobných onemocnĕni v Bulharsku v roce 1975.