title: [Air pollution, bronchitis and emphysema in the Ruhr district (author's transl)].
mesh_terms: D000397:Air Pollution; D001249:Asthma / Q000209:etiology; D001991:Bronchitis / Q000209:etiology*; D005860:Germany, West; D006801:Humans; D011656:Pulmonary Emphysema / Q000209:etiology*; D012905:Smog
chemical_list: D012905:Smog
vernacular_title: Luftverschmutzung, Bronchitis, Emphysem: Ergebnisse im Ruhrgebiet