title: [Reasons for a protracted course in pneumonia].
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000175:diagnosis*
vernacular_title: O prichinakh zatiazhnogo techeniia pnevmoniĭ