1. Department of Surgery, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea
2. Department of Emergency Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
3. Intensive Care Unit, School of Medicine, Kyungpook National University Chilgok Hospital, Kyungpook National University, Daegu, Republic of Korea