1. Department of Surgery Samsung Medical Center Sungkyunkwan University School of Medicine, Seoul, Korea
2. Department of Surgery Seoul National University College of Medicine, Seoul, Korea
3. Department of Colon and Rectal Surgery University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
4. Department of Surgery Daehang Hospital, Seocho-gu, Seoul, Korea
5. Yeungnam University Medical Center, Daegu, Korea
6. Anterogen Co., Ltd., Seoul, Korea
7. Division of Life and Pharmaceutical Sciences and the Center for Cell Signaling & Drug Discovery Research College of Pharmacy, Ewha Womans University, Seoul, Korea