[Cold agglutinins in the diagnosis of atypical virus pneumonia].
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D000373:Agglutinins; D003450:Cryoglobulins; D006801:Humans; D007251:Influenza, Human; D011014:Pneumonia; D018410:Pneumonia, Bacterial; D011024:Pneumonia, Viral
D000373:Agglutinins; D003450:Cryoglobulins; C029443:cold agglutinins