Judgement and causal inference: criteria in epidemiologic studies.
D002648:Child; D004739:England; D004812:Epidemiologic Methods; D006666:History of Medicine; D006801:Humans; D007600:Judgment; D011054:Poliovirus Vaccine, Inactivated / Q000266:history; D013223:Statistics as Topic; D014436:Typhoid-Paratyphoid Vaccines / Q000266:history; D014481:United States
D011054:Poliovirus Vaccine, Inactivated; D014436:Typhoid-Paratyphoid Vaccines