[DATA ON POLIOMYELITIS IN 19 EUROPEAN COUNTRIES (1958-1962)].
D005060:Europe; D006801:Humans; D011051:Poliomyelitis; D013223:Statistics as Topic
EUROPE; POLIOMYELITIS; STATISTICS
ENKELE GEGEVENS OVER POLIOMYELITIS IN NEGENTIEN EUROPESE LANDEN (1958-1962