Leonardo V. Riella, MD, PhD, the Harold and Ellen Danser endowed chair in Transplantation, medical director of the MGH Kidney Transplant Program, associate director of the Legorreta Center for Clinical Transplant Tolerance, MGH Harvard Medical School, will present the Medicine Grand Rounds, "Innovation in Kidney Transplantation: From Tolerance to Xenotransplantation," at noon on Tuesday, March 18, in R153 and online via Webex.