1. Department of Surgery, Dongnam Institute of Radiological and Medical Sciences, Cancer Center, Busan, Republic of Korea
2. Department of Surgery, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
3. Department of Surgery, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea
4. Department of Anesthesiology, Gyeongsang National University Changwon Hospital, Changwon, Republic of Korea