在一切授受礼物的人当中，象他们这样的人也是最聪明的。

Of all who give and receive gifts, such as they are wisest.

移植前一周，患者授受一种称为阿仑单抗的药。该药破坏循环中的自然白细胞，使之丧失攻击移植细胞能力。

Starting about a week before the transplant, the patients also received a drug called alemtuzumab which destroyed circulating native white blood cells so they couldn't attack the transplanted cells.