Robert Negrin is Professor of Medicine and Chief of the Division of Blood and Marrow Transplantation at Stanford University. His research work has focused on cellular immunology, in particular developing a more fundamental understanding of complex biological reactions such as graft versus host and graft versus tumor reactions in animal models and the clinic. He has authored over 225 original papers, 40 book chapters, and a book. He has received a number of awards, including a fellowship from the José Carreras Foundation. He is a recipient of the Doris Duke Distinguished Clinical Scientist Award and is a member of the Association of American Physicians. Previously, he served as President of the International Society for Cellular Therapy and the American Society of Blood and Marrow Transplantation. He served as Associate Editor of the journal Blood and is the founding editor of Blood Advances. He received his undergraduate degree from the University of California, Berkeley and medical degree from Harvard University. He trained in medicine and hematology at Stanford University and joined the faculty in 1990.