title: Fall in carbon-monoxide blood levels after stopping smoking.
mesh_terms: D000328:Adult; D000368:Aged; D002248:Carbon Monoxide / Q000097:blood*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012907:Smoking; D000074606:Smoking Prevention; D013997:Time Factors
chemical_list: D002248:Carbon Monoxide