Poliomyelitis in children under 6 months in England and Wales during 1950.
D002648:Child; D004739:England; D006801:Humans; D011051:Poliomyelitis / Q000453:epidemiology*; D014852:Wales
POLIOMYELITIS/epidemiology
Lancet. 1951 May 12;1(6663):1028-32
14825893
J Neurol Neurosurg Psychiatry. 1952 Feb;15(1):13-9
14908610
Lancet. 1953 Jun 27;1(6774):1268-72
13053747