Sinus bradycardia.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001146:Arrhythmia, Sinus / Q000150:complications; D001145:Arrhythmias, Cardiac / Q000150:complications; D001281:Atrial Fibrillation; D001285:Atropine; D001919:Bradycardia / Q000188:drug therapy; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006339:Heart Rate; D006801:Humans; D007545:Isoproterenol; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D013575:Syncope / Q000150:complications
D001285:Atropine; D007545:Isoproterenol