title: [Peculiarities of clinical course of influenza A2 in elderly patients].
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D009980:Influenza A virus; D007251:Influenza, Human / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged
vernacular_title: Osobennosti klinicheskogo techeniia grippa A2 u bol'nykh pozhilogo vozrasta