Professor of Surgery: 
Chief, Division of Transplantation and Vascular Surgery, Department of Surgery, Seoul National University Hospital, Seoul, Korea 

Director, Organ Transplantation Center:
Seoul National University Hospital, Seoul, Korea, July 2024 – present

Director, Center for Quality and Patient Safety:
Seoul National University Hospital, Seoul, Korea, June 2019 – April 2023

Chief Executive Officer: 
ROSANUS, Inc., Seoul, Korea

2022 – Present   Korean Study Group of Kidney and Pancreas Transplantation,  Member, Secretary General
2022 – Present   Korean Foundation of Surgical Research, Secretary General
2014 – Present   International Society for Organ Donation and Procurement, Member
2013 – Present   International Pediatric Transplant Association, Member
2011 – Present   International Xenotransplantation Association, Member
2011 – Present   Korean Society for Vascular Access, Board Member
2011 – Present   Korean Society of Phlebology, Member
2010 – Present   The Transplantation Society, Member
2010 – Present   American Society of Transplantation, Member
2010 – Present   Korean Society of Vascular Surgery, Member   
2009 – Present   Korean Society of Transplantation, Member, Secretary General, KST (2019 – 2021), Financial Committee Chair (2021 – present)
2006 – Present   Korean Society of Surgery, Member, Vice Secretary General, KSS (2020 – 2022)

Vascular Specialist International (eISSN: 2288-7989)
International Journal of Orthopaedics (ISSN 2311-5106)
Journal of Surgical Ultrasound (ISSN 2288-9140)
Journal of the Korean Society for Transplantation (ISSN 1598-1711)
Frontiers in Medicine (ISSN 2296-858X)
OBM Transplantation (ISSN 2577-5820)

Annals of Vascular Surgery
Pharmacotherapy
Peritoneal Dialysis International
Hemodialysis International
Journal of Trauma & Treatment
Journal of Clinical Pharmacy and Therapeutics
BMC Cardiovascular Disorder
Frontiers in medicine
Transplantation
American Journal of Transplantation