[Exogenic factors in the etiology of chronic bronchitis].
D000328:Adult; D000397:Air Pollution; D001991:Bronchitis / Q000209:etiology*; D002908:Chronic Disease; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases; D012907:Smoking / Q000150:complications*
Les facteurs exogènes dans l'étiologie de la bronchite chronique.