EDUCATION & TRAINING:

M.D. (1996) Seoul National University College of Medicine, Seoul, Korea
Ph.D. (2006) Graduate School, Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
1997.03-2001.02: Resident, Department of Surgery, Seoul National University Hospital
2001.03-2003.02: Fellow, Department of Surgery, Seoul National University Hospital

ACADEMIC APPOINTMENTS:

2003.03-2004.07:	Clinical Instructor, Department of Surgery, Seoul National University Hospital, Seoul, Korea
2004.08-2007.03:	Instructor (full-time), Department of Surgery, Seoul National University College of Medicine, Seoul, Korea
2007.07-2009.02:	Visiting researcher in Department of Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
2007.04-2012.02:	Assistant Professor, Department of Surgery & Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
2012.03-2017.02:	Associate Professor, Department of Surgery & Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
2015.03-2024.02:	Leader, Nutritional Support Team (NST), Seoul National University Hospital
2016.08-2025.09:	Division chief, Gastrointestinal Division, Department of Surgery, Seoul National University Hospital, Seoul, Korea
2020.06-present:	Head, Gastric Cancer Center, SNU Cancer Hospital, Seoul, Korea
2017.03-present:	Professor, Department of Surgery & Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea

SCIENTIFIC SOCIETIES:

Korean Gastric Cancer Association (KGCA); Member, Secretary of Scientific Committee (2015~2017), Chair of International Affair Committee (2017~2021), Chair of Scientific Committee (2021~2023), Chairman of Board of Directors (2025.10~present)
Korean Society of Metabolic and Bariatric Surgery (KSMBS); Member, Chair of Information Committee (2013~2016), Chair of Textbook Publication Committee (2016~2018), Secretary General (2018~2022), Chair of Scientific Committee (2022~2024), Chair of International Affair Committee (2024~present)
Korean Surgical Society (KSS); Member, Vice Secretary General (2010~2012), Chair of Surgical Skill Education Committee (2022.11~present)
Korean Cancer Association (KCA); Member, Vice Chair of Research Committee (2020~2022)
Korean Society of Surgical Metabolism and Nutrition (KSSMN); Member, Chair of Clinical Trial/Guideline Committee (2012~2016), Chair of Scientific Program Committee (2016~2018), Secretary General (2018~2020), Chair of ASSMN inauguration committee (2020~2022), Chair of International Affair Committee (2022~present)
Korean Society of Parenteral and Enteral Nutrition (KSPEN); Member, Chair of Publication Committee (2012~2018), Chair of Information Committee (2018~2022), Chair of NST Committee (2022~2024), Chair of International Affair Committee (2024~present)
Korean Surgical Skill Study Group (KSSSG); Member, Secretary General (2017~2021), President (2023.03~present)
Korean Quality of life in Stomach cancer patients Study group (KOQUSS); Member, Founder & President (2016.01~2022.05)
Korean Laparoendoscopic Gastrointestinal Surgery Study Group (KLASS); Member, Steering Committee member (2004~present), Chair of Public Relations Committee (2017~2019), Chair of Scientific Committee (2019~2021), Chair of Research Committee (2021~2023), Chair of International Affair & Public Relations Committee (2023~2025)
Korean Society of Gastroenterology; Member, Vice Secretary General (2009~2011)
International Gastric Cancer Association (IGCA); Secretary of Scientific Committee of 9^th IGCC (2011)
International Gastric Cancer Association (IGCA); Congress President of 18^th IGCC (2029)

AWARD:

2003	"Best Abstracts Award" at 11th UEGW (United European Gastroenterology Week; Madrid, Spain)
2010	"Distinct Poster Award" at DDW (Digestive Disease Week; New Orleans, USA)
2010	"Yeon-Gang Scientific Award" by Korean Surgical Society
2010	"Young Investigator Award" by Alumni of Department of Surgery, Seoul National University College of Medicine
2011	"Young Investigator Award" by Seoul National University College of Medicine & Seoul National University Hospital
2017	"Best oral presentation" at 12nd IGCC (International Gastric Cancer Congress; Beijing, China)

SPECIALIZED FIELDS:

Surgical oncology, especially for gastric cancer
Laparoscopic & robotic gastric cancer surgery, NOTES
Gastric carcinogenesis & tumor biomarker study
Nutritional support for surgical cancer patients
Bariatric and metabolic surgery