Graduated from Seoul National University (1988)
Master Degree (1998, University of Ulsan)
Ph.D Degree (2005, Hanyang University)
Fellowship, Asan Medical Center, 1995-1997
Instructor~Associate Professor, University of Ulsan, Asan Medical Center, 1998-2010
Professor, University of Ulsan, Asan Medical Center, 2010-now
Visiting scholar, UC San Diego, 2002-2004
Main interests
1. Therapeutic endoscopy including EMR/ESD, POEM, EFTR, STER
2. Helicobacter pylori associated disease
3. Esophageal motility disorders