[Etiology and pathogenesis of chronic  infectious respiratory tract diseases].
D000818:Animals; D001999:Bronchoscopy; D006801:Humans; D012141:Respiratory Tract Infections / Q000209:etiology*; D013183:Sputum / Q000382:microbiology
Etiologiia i patogenez khronicheskikh vospalitel'nykh zabolevaniĭ organov dykhaniia.