title: Severe influenza virus pneumonia in the pandemic of 1968-1969.
mesh_terms: D000328:Adult; D000368:Aged; D004196:Disease Outbreaks; D005260:Female; D006723:Hong Kong; D006801:Humans; D007251:Influenza, Human / Q000150:complications*; D008297:Male; D009975:Orthomyxoviridae / Q000302:isolation & purification; D011024:Pneumonia, Viral / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology* / Q000382:microbiology; D011859:Radiography; D013714:Tennessee