EDUCATION: 1993-1999 Yonsei University College of Medicine, Seoul, Korea 2001-2003 Master Degree, Graduate School, Yonsei University 2008-2015 Ph.D. Degree, Graduate School, Yonsei University College of Medicine BRIEF CHRONOLOGY OF TRAINING & EMPLOYMENT: 1999-2004 Internship and Residency, Severance Hospital, Yonsei University College of Medicine, 2007-2008 Clinical and Research Fellowship, Severance Hospital, Division of Gastroenterology 2008-2013 Assistant Professor, Kwandong University College of Medicine, 2014- Associate professor Gachon university Gil Medical Center