[On the incidence of various electrocardiographic changes in the aging man].
D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D004562:Electrocardiography; D006801:Humans; D015994:Incidence; D008297:Male
AGING/physiology; ELECTROCARDIOGRAPHY/in old age