Bronchial muscle tone in chronic bronchitis.
D000403:Airway Resistance / Q000187:drug effects; D001991:Bronchitis / Q000503:physiopathology*; D002908:Chronic Disease; D006801:Humans; D007545:Isoproterenol / Q000494:pharmacology; D009129:Muscle Tonus / Q000187:drug effects
D007545:Isoproterenol