[Certain indices of incidence of influenza among railroad workers during the epidemic outbreak of 1969].
D000328:Adult; D000367:Age Factors; D004196:Disease Outbreaks; D005260:Female; D049673:History, 20th Century; D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D011890:Railroads; D012426:Russia; D012737:Sex Factors
Nekotorye pokazateli zabolevaemosti grippom rabotnikov zheleznodorozhnogo transporta vo vremia épidemicheskoĭ vspyshki 1969 g.