Answer:Organ transplantation is an effective therapy for end-stage organ failure and is widely practised around the world. According to WHO, kidney transplants are carried out in 91 countries. Around 66 000 kidney transplants, 21 000 liver transplants and 6000 heart transplants were performed globally in 2005. The access of patients to organ transplantation, however, varies according to their national situations, and is partly determined by the cost of health care, the level of technical capacity and, most importantly, the availability of organs.
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