title: Chronic bronchitis in an Egyptian ice factory.
mesh_terms: D000328:Adult; D000641:Ammonia / Q000506:poisoning*; D001991:Bronchitis / Q000139:chemically induced / Q000209:etiology*; D002908:Chronic Disease; D003080:Cold Temperature / Q000009:adverse effects*; D004534:Egypt; D004781:Environmental Exposure; D006801:Humans; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology*; D012907:Smoking / Q000150:complications
chemical_list: D000641:Ammonia