 According to two authors who develop this line of reasoning, the nearly simultaneous emergence of organ transplantation and mechanical ventilators provoked three practical questions: (1) When may doctors take organs for transplantation? (2) When may doctors unilaterally discontinue treatment? (3) When is a patient dead for legal purposes and appropriately transferred to an undertaker? (Halevy and Brody 1993). Rather than assuming that one standard for death will adequately answer these three questions—a possibility rendered doubtful by the interminable debate over standards—we should answer each question on its merits, disaggregating death accordingly.