He is the recipient of the CIHR/Wyeth Clinical Research Chair in Transplantation. His major contributions have been in the immune therapy of Acute Lymphoblastic Leukemia and the pathology of Chronic Graft-versus-Host Disease. In 2000, he was elected the first Chair of the Canadian Bone Marrow Transplant ("BMT") Clinical Trial Group, a group that includes all adult and pediatric BMT centers in Canada. Since 2004, he is the Pediatric BMT Consortium Chair and developed the first pediatric focused section at the American Society of BMT.