[Epidemiological observations in a poliomyelitis epidemic of 1956 in Basel and its environment].
D004777:Environment; D058872:Epidemics; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology*
POLIOMYELITIS/epidemiology
Epidemiologische Beobachtungen bei der Poliomyelitisepidemie 1956 in Basel und Umgebung.