title: [Origin and development of chronic bronchitis in dependent of occupation].
mesh_terms: D000368:Aged; D000818:Animals; D001991:Bronchitis / Q000209:etiology*; D002908:Chronic Disease; D003604:Czechoslovakia; D004391:Dust; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology*; D009790:Occupations; D011817:Rabbits; D051381:Rats
chemical_list: D004391:Dust
vernacular_title: Entstehung und Entwicklung der chronischen Bronchitis in Abhängigkeit von Beruf.