title: OBSERVATIONS ON THE EFFECT OF HEART RATE ON CARDIAC OUTPUT IN PATIENTS WITH COMPLETE HEART BLOCK AT REST AND DURING EXERCISE.
mesh_terms: D001285:Atropine; D002302:Cardiac Output; D004558:Electric Stimulation; D005853:Geriatrics; D006321:Heart; D006327:Heart Block; D006339:Heart Rate; D006801:Humans; D010600:Pharmacology; D005082:Physical Exertion; D010827:Physiology; D012146:Rest
chemical_list: D001285:Atropine
keywords: ATROPINE; CARDIAC OUTPUT; ELECTRIC STIMULATION; EXERTION; GERIATRICS; HEART; HEART BLOCK; HEART RATE; PHARMACOLOGY; PHYSIOLOGY; REST