[Influence of extrinsic factors in chronic bronchitis].
D000397:Air Pollution; D001991:Bronchitis / Q000209:etiology* / Q000235:genetics; D002908:Chronic Disease; D002980:Climate; D006801:Humans; D009784:Occupational Diseases; D011203:Poverty; D012907:Smoking
Influence des facteurs extrinsèques dans la bronchite chronique.