title: Elevated carbon monoxide levels from smoking in blood donors.
mesh_terms: D000293:Adolescent; D000328:Adult; D001782:Blood Donors; D001784:Blood Gas Analysis; D001793:Blood Preservation; D002248:Carbon Monoxide / Q000097:blood*; D006801:Humans; D006985:Hyperventilation; D008297:Male; D010100:Oxygen / Q000097:blood; D010102:Oxygen Inhalation Therapy; D005082:Physical Exertion; D012907:Smoking
chemical_list: D002248:Carbon Monoxide; D010100:Oxygen