[Epidemiologic characteristics of pertussis in Leningrad (1950--1971)].
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D049673:History, 20th Century; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D012426:Russia; D014611:Vaccination; D014917:Whooping Cough / Q000453:epidemiology / Q000266:history* / Q000517:prevention & control
Epidemiologicheskaia kharakteristika kokliusha v leningrad(1950--1971gg.).