title: Debate: the effects of life extension.
authors: Gregory
authors: G
authors: Stock
authors: Daniel
authors: D
authors: Callahan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging; D001675:Bioethics; D004992:Ethics, Medical; D006801:Humans; D019369:Life; D008017:Life Expectancy; D008136:Longevity; D012060:Rejuvenation; D026712:Value of Life