title: Chronic bronchitis and emphysema.
mesh_terms: D001991:Bronchitis / Q000188:drug therapy*; D004646:Emphysema / Q000188:drug therapy*; D004809:Ephedrine / Q000627:therapeutic use*; D006801:Humans; D011193:Potassium Iodide / Q000627:therapeutic use*; D013183:Sputum / Q000187:drug effects
chemical_list: D011193:Potassium Iodide; D004809:Ephedrine