PHOENIX (Reuters) - Surgeons in Arizona have successfully carried out a rare mother-to-child liver transplant, after a search for an organ from a deceased donor for the desperately ill 1-year-old girl came up blank, the hospital said. In a procedure performed on March 20 by surgeons at the University of Arizona Medical Center in Tucson, Vanessa Negrete, 26, from Yuma, Arizona, donated a section ...