Dr. Ha received MD at Seoul National University College of Medicine and PhD at Graduate School of Seoul National University College of Medicine. Currently, Dr. Ha is a professor of Surgery, Seoul National University College of Medicine and Director of Transplant Center, Seoul National University Hospital. Major activities are kidney and pancreas transplantation and related research. Dr. Ha established and served as the president of Korea Organ Donation Agency (KODA) which is the national OPO of Korea. Currently, Dr. Ha is an executive director of Korean Alliance for Donor Family. Dr. Ha was a council member and is a chair of membership committee of TTS. He is also a member of IXA, and ISODP.