title: Letter: Effect of smoking on carboxyhaemoglovin level in pregnancy.
mesh_terms: D000328:Adult; D002263:Carboxyhemoglobin / Q000032:analysis*; D005260:Female; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D011247:Pregnancy; D012907:Smoking
chemical_list: D006454:Hemoglobins; D002263:Carboxyhemoglobin