[Epidemiology of poliomyelitis:  epidemiological aspects of poliomyelitis in the Rumanian People's Republic].
D005006:Ethnicity; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology*
POLIOMYELITIS/epidemiology
Consideratii asupra epidemiologiei poliomielitei:  aspecte epidemiologice ale poliomielitei ín R.P.R.