The us has an "opt-in" organ donation system in which one must give consent in order to be designated a donor.
美国的器官捐献制度属于“明确选定”式，即必需有本人事先同意后，才可以被指定为捐献者。
Typically livers in transplantation surgery come from a donor who has died, although in some cases healthy people donate a portion of their liver for a designated patient.
经典的肝移植供体来自尸肝，然而对特定的病人而言，某些健康人可以捐献他们的部分活体肝脏进行移植。
Typically livers in transplantation surgery come from a donor who has died, although in some cases healthy people donate a portion of their liver for a designated patient.
经典的肝移植供体来自尸肝，然而对特定的病人而言，某些健康人可以捐献他们的部分活体肝脏进行移植。
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