The prognosis in chronic bronchitis.
D000041:Absenteeism; D000328:Adult; D000367:Age Factors; D000368:Aged; D001991:Bronchitis / Q000150:complications / Q000453:epidemiology / Q000401:mortality; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008824:Michigan; D008875:Middle Aged; D009026:Mortality; D009790:Occupations / Q000145:classification; D011379:Prognosis; D011656:Pulmonary Emphysema / Q000000981:diagnostic imaging / Q000503:physiopathology; D011859:Radiography; D012179:Retirement; D012189:Retrospective Studies; D012829:Silicosis / Q000150:complications; D012907:Smoking; D014942:Workers' Compensation