1. Department of Surgery, Ng Teng Fong General Hospital, Jurong Health Services, Singapore2Department of Surgery, Min-Sheng General Hospital, Taoyuan City, Taiwan
2. Department of Surgery, Min-Sheng General Hospital, Taoyuan City, Taiwan
3. Department of Internal Medicine, Min-Sheng General Hospital, Taoyuan City, Taiwan
4. Department of International Business, Chien Hsin University of Science and Technology, Taoyuan City, Taiwan