(Annie Knox | The Salt Lake Tribune)

After 16 years of liver failure, Betty Garcia, left, received a little over half a new liver in November from her daughter Rachel Garcia-Trujillo, right. Doctors at Intermountain Medical Center hope to do more of the "live transplants," which cut the wait-time for patients in need. The extensive surgery takes all day, and can seriously hurt the donor, so hospital officials require the donor and the receiving patients to have a "strong emotional bond." Both women are expected to regrow a fully working version of the organ in coming weeks.