title: Smoking and the leucocyte count.
mesh_terms: D002248:Carbon Monoxide / Q000097:blood; D002263:Carboxyhemoglobin / Q000032:analysis; D006801:Humans; D007958:Leukocyte Count; D012907:Smoking
chemical_list: D002248:Carbon Monoxide; D002263:Carboxyhemoglobin