Professor, Seoul National University (SNU) and SNU Hospital

President, Korean Society of Gynecologic Oncology

Former President, Asian Society of Gynecologic Oncology

Former Vice President, International Gynecologic Cancer Society

Vice President, Korean Gynecologic Oncology Group (KGOG)

Board of Executive, Gynecologic Cancer Intergroup (GCIG)

Executive Committee, Asia-Pacific Gynecologic Oncology Trials (APGOT) Group

Council, East Asian Gynecologic Oncology Trial (EAGOT) Group

Former Editor-in-Chief, JGO

Former Editorial Board, JCO

Former Senior Editor, IJGC