title: Epidemiology of chronic mucus hypersecretion and obstructive airways disease.
mesh_terms: D000367:Age Factors; D000397:Air Pollution; D000402:Airway Obstruction / Q000453:epidemiology* / Q000235:genetics; D000435:Alcoholic Intoxication / Q000150:complications; D002648:Child; D005260:Female; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009093:Mucus / Q000378:metabolism*; D009790:Occupations; D012141:Respiratory Tract Infections / Q000150:complications; D012306:Risk; D012737:Sex Factors; D012907:Smoking / Q000150:complications; D012923:Social Class