[Epidemiological review of the most severe diseases in Czechoslovakia in. 1957].
D002648:Child / Q000453:epidemiology; D003604:Czechoslovakia; D004813:Epidemiology; D010372:Pediatrics / Q000453:epidemiology*
EPIDEMIOLOGY; PEDIATRIC DISEASES/epidemiology
K epidemiologické situaci nejzávaznĕjsich nákaz v roce 1957 v Ceskoslovensku.