title: Etiology of virus pneumonia among children in Peking, 1973-1975.
mesh_terms: D000257:Adenoviridae Infections; D000258:Adenovirus Infections, Human; D000260:Adenoviruses, Human / Q000276:immunology; D002675:Child, Preschool; D002681:China; D006801:Humans; D007223:Infant; D011024:Pneumonia, Viral / Q000209:etiology*