[Epidemiology of influenza and of other influenza-like diseases].
D006801:Humans; D007251:Influenza, Human / Q000453:epidemiology*; D009976:Orthomyxoviridae Infections / Q000453:epidemiology*; D014586:USSR
Epidemiologiia grippa i drugikh grippopodovnykh zabolevaniĭ.