Bronchial epithelium and cigarette smoking.
D000368:Aged; D001980:Bronchi / Q000473:pathology*; D002248:Carbon Monoxide / Q000032:analysis; D004848:Epithelium / Q000473:pathology; D006801:Humans; D012906:Smoke / Q000032:analysis; D012907:Smoking / Q000473:pathology*
D012906:Smoke; D002248:Carbon Monoxide