Affiliation: | 1. Department of Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Republic of Korea;2. Graduate School of Medicine, The Catholic University of Korea, Seoul, Republic of Korea;3. Department of Anesthesiology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea;4. Department of Surgery, Uijeongbu St. Mary’s Hospital, The Catholic University of Korea, Uijeongbu, Republic of Korea |