More than 100,000 people are waiting on the kidney transplant list, with some waiting for weeks, months, or even years for the call that could change their life. That makes what happened at Houston Methodist in Houston, Texas even more extraordinary. Ten people, including a husband and wife, a boss and her employee, a mother and son, two sisters, and two cousins, took part in a kidney swap. The five pairs were strangers before they walked into the hospital and left with a life-long bond. Over multiple days, surgeons operated on the patients. Five people donated their kidneys, and five people's lives were saved by their gift. On the day of operations, Dr. Osama Gaber, director of surgery at Houston Metho...