[Etiology and pathogenesis of the bronchitic syndrome and its social medical significance].
D001991:Bronchitis / Q000453:epidemiology / Q000209:etiology*; D002908:Chronic Disease; D004185:Disability Evaluation; D005740:Gases; D006801:Humans; D012907:Smoking; D012936:Social Medicine
D005740:Gases
Zur Atiologie und Pathogenese des bronchitischen Syndroms und seine sozialmedizinische Bedeutung.