Yuichi Iwaki, MD, PhD, has served as a director of the Company since November 1994. Since 1992, Dr. Iwaki has held three professorships at the University of Southern California School of Medicine in the Departments of Urology, Surgery, and Pathology, and is director of the Transplantation Immunology and Immunogenetic Laboratory. In addition, he holds visiting professorships at Nihon University School of Medicine in Japan, the University of Pittsburgh School of Medicine, and the University of California, Irvine. He is the author of more than 200 publications and 50 books or book chapters. Prior to joining the University of Southern California Medical School faculty, Dr. Iwaki held professorships at the University of Pittsburgh in the Departments of Surgery and Pathology from 1989 through 1991. Dr. Iwaki received an MD and a PhD from Sapporo Medicine School in Sapporo, Japan.