[2 cases of primary influenza A2-Hong-Kong virus pneumonia].
D000328:Adult; D000368:Aged; D001344:Autopsy; D006801:Humans; D007251:Influenza, Human / Q000150:complications* / Q000473:pathology; D008297:Male; D011024:Pneumonia, Viral / Q000150:complications* / Q000473:pathology