title: Iron content of sputum.
mesh_terms: D001991:Bronchitis / Q000378:metabolism; D006801:Humans; D007501:Iron / Q000032:analysis* / Q000378:metabolism; D011656:Pulmonary Emphysema / Q000378:metabolism; D013183:Sputum / Q000032:analysis*
chemical_list: D007501:Iron