title: Bronchial sympathetic activity in chronic bronchitis.
mesh_terms: D000403:Airway Resistance / Q000187:drug effects; D001285:Atropine / Q000494:pharmacology; D001991:Bronchitis / Q000503:physiopathology*; D002908:Chronic Disease; D006801:Humans; D011433:Propranolol / Q000494:pharmacology*; D013564:Sympathetic Nervous System / Q000503:physiopathology*
chemical_list: D001285:Atropine; D011433:Propranolol