[Pneumonia in influenza during 1957 pendemia].
D006801:Humans; D007251:Influenza, Human / Q000150:complications*; D011014:Pneumonia / Q000209:etiology*
INFLUENZA/complications; PNEUMONIA/etiology and pathogenesis
O pnevmoniiakh u bol'nykh grippom vo vremia pandemii 1957 g.