[Clinical peculiarities of chronic bronchitis of occupational etiology].
D001991:Bronchitis / Q000139:chemically induced / Q000150:complications / Q000209:etiology*; D002908:Chronic Disease; D006801:Humans; D009784:Occupational Diseases / Q000209:etiology*; D011009:Pneumoconiosis / Q000150:complications
Klinicheskie osobennosti khronicheskikh bronkhitov professional'noĭ etiologii.