Soh Jae Seung1, Joo Jeong iL2, Park Young Han3, Lim Sang Woo4. 1. Department of Internal Medicine, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, South Korea. 2. Department of Surgery, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, South Korea. 3. Department of Obstetrics & Gynecology, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, South Korea. 4. Department of Surgery, Hallym University College of Medicine, Hallym University Sacred Heart Hospital, South Korea. Electronic address: swlim12@hallym.ac.kr.