When You're 24, 34 ... 84?
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D003695:Delivery of Health Care; D006331:Heart Diseases / Q000151:congenital / Q000191:economics / Q000601:surgery / Q000628:therapy*; D006801:Humans; D007231:Infant, Newborn; D008875:Middle Aged