| Citation | Professor Morris is a distinguished surgeon who has made important contributions to transplantation theory. He and his colleagues were the first to report donor-specific antibodies in renal transplant recipients, matching for HLA in cadaver transplantation, and matching for HLA-DR. His definition of the different types of antibody in hypersensitive patients which give rise to a positive cross-match with an organ donor has allowed transplantation to be performed in many patients considered non-transplantable by accepted criteria. He has extended our understanding of HLA and disease associations, and has carried out important genetic studies in the populations of Papua-New Guinea and S.E. Asia. Morris is distinguished also for work in animals on passive and active enhancement of organ allografts, and transplantation of pancreatic islet tissue. He was until recently President of the Transplantation Society. |