title: Carbon-monoxide absorption by cigarette smokers who change to smoking cigars.
mesh_terms: D000328:Adult; D002248:Carbon Monoxide / Q000097:blood / Q000378:metabolism*; D006454:Hemoglobins; D006801:Humans; D008297:Male; D008875:Middle Aged; D009538:Nicotine / Q000008:administration & dosage / Q000009:adverse effects / Q000378:metabolism; D012907:Smoking / Q000150:complications / Q000401:mortality
chemical_list: D006454:Hemoglobins; D009538:Nicotine; D002248:Carbon Monoxide