THE RELATION OF AGE TO THE DURATION OF CONTRACTION, EJECTION, AND RELAXATION OF THE NORMAL HUMAN HEART.
D000375:Aging; D006328:Cardiac Catheterization; D002648:Child; D004562:Electrocardiography; D005853:Geriatrics; D006321:Heart; D006334:Heart Function Tests; D006801:Humans; D010827:Physiology
AGING; CHILD; ELECTROCARDIOGRAPHY; GERIATRICS; HEART CATHETERIZATION; HEART FUNCTION TESTS; PHYSIOLOGY