title: Interrelation of heart rate and autonomic activity in asymptomatic men with unobstructed coronary arteries. Studies with atrial pacing, adrenaline infusion, and autonomic blockade.
mesh_terms: D000293:Adolescent; D000328:Adult; D001285:Atropine / Q000494:pharmacology; D001341:Autonomic Nervous System / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D003327:Coronary Disease / Q000473:pathology / Q000503:physiopathology*; D003331:Coronary Vessels / Q000473:pathology*; D004562:Electrocardiography; D004837:Epinephrine / Q000494:pharmacology; D005080:Exercise Test; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D011433:Propranolol / Q000494:pharmacology
chemical_list: D001285:Atropine; D011433:Propranolol; D004837:Epinephrine