[The bronchitic syndrome and its risk factors (I)].
D000328:Adult; D001991:Bronchitis / Q000139:chemically induced*; D002617:Chemical Industry; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000139:chemically induced*; D012306:Risk
Das bronchitische Syndrom und seine Risikofaktoren (I).