His major interests are in renal disease and transplantation and has wide preclinical and clinical research interests in kidney, pancreas, bone marrow and islet transplantation. He is the Editor-in-Chief for Transplantation and Transplantation Direct 2015-2020, a Past-President of The Transplantation Society, Advisory Member of The World Health Organisation Expert Advisory Panel on Human Cell Tissue and Organ Transplantation, Secretary General and Past President of the World Marrow Donor Association, founding Co-Chair of the Declaration of Istanbul Custodian Group, Chairman of the Australian Bone Marrow Donor Registry, the Australian Cord Blood Bank Network, and Past President of the Transplantation Society of Australia and New Zealand. He is a member of the Advisory Council of the Australian Organ and Tissue Authority. He received the Asturias Foundation 2010 Award for International Cooperation on behalf of The Transplantation Society and was awarded the 2010 David Hume Award of the US National Kidney Foundation. He was awarded the Medal of the Order of Australia in 2003 (OAM) and Companion of the Order of Australia in 2015 (AC).