Researchers at Johns Hopkins University School of Medicine say they've found a way to match more kidney donors with recipients.
If a person is willing to give a healthy kidney to a family member in need, but their blood types pose a problem, the hospital is taking that pair and matching them with another family duo that is also willing, but incompatible. By "swapping" willing donors, surgeons there are saving lives and cutting down on the number of people waiting for kidney transplants. This has been done 22 times already at Johns Hopkins.
By the way, the surgeries are done simultaneously, so one pair doesn't back out before the transplant is complete.