title: [Discussion on the concept and classification of chronic nonspecific lung diseases].
mesh_terms: D002908:Chronic Disease; D006801:Humans; D008171:Lung Diseases / Q000145:classification / Q000175:diagnosis; D009626:Terminology as Topic
vernacular_title: K diskussii o poniatii i klassifikatsii khronicheskikh nespetsificheskikh zabolevaniĭ legkikh