title: Chronic bronchitis and ventilatory impairment in bidi smokers (a follow-up report).
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000453:epidemiology*; D001991:Bronchitis / Q000453:epidemiology*; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012907:Smoking / Q000150:complications* / Q000503:physiopathology