Medical examination of immigrants.
D003140:Communicable Disease Control; D004641:Emigration and Immigration; D004739:England; D006801:Humans; D008403:Mass Screening
Br Med J. 1964 Apr 25;1(5390):1074-7
14113820
Lancet. 1964 May 16;1(7342):1091-5
14132620