On the aging of the heart; why is it so much more conspicuous in the ballistocardiogram than in the pulse?
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D002320:Cardiovascular Physiological Phenomena; D006321:Heart; D006339:Heart Rate; D006801:Humans
AGING/physiology; HEART/in old age