- ※ Speciality: colon cancer, rectal cancer, laparoscoic surgery
- Graduated from Yonsei University, College of Medicine in 1984.
- Completed Residents course of surgery, Severance Hospital, Yonsei University College of Medicine in1989
- Yonsei University College of Medicine PhD, in1995.
- Training course on Cleveland Clinic Foundation, Ohio, USA in 1996.
- Japan Cancer Center Training course in 2006
- National Health Insurance Service Ilsan Hospital, Deputy Director of Medical Treatment
- Clinical Professor of Surgery, Yonsei University College of Medicine
- Executive Director, the Korean Society of coloproctology
- Executive Director, Korean Society of Surgery
- Executive Director, Society of Clinical Oncology
- - Specialized in Oral & Maxillofacial Surgery
- - Ph.D in Implantalogy, College of Medicine, Korea University
- - Served as an adjunct professor, College of Medicine, Korea University
- - Served as a full time dentist, Wilshire Park Dental Institute in California
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