Letter: carbon monoxide and smoking.
D002248:Carbon Monoxide / Q000378:metabolism*; D002263:Carboxyhemoglobin / Q000378:metabolism; D004780:Environment, Controlled; D004781:Environmental Exposure; D006454:Hemoglobins / Q000378:metabolism*; D006801:Humans; D012907:Smoking
D006454:Hemoglobins; D002248:Carbon Monoxide; D002263:Carboxyhemoglobin