1. Surgery Department, Chiayi Branch, Taichung Veterans General Hospital, Chiayi, Taiwan, Republic of China;
2. Division of Cardiovascular Surgery, Taichung Veterans General Hospital, Taichung, Taiwan, Republic of China;
3. Department of Medical Humanities and Social Sciences, School of Medicine, College of Medicine, Chang Gung University, Taoyuan, Taiwan, Republic of China;
4. Center of Rheumatology and Immunology, China Medical University Hospital, Taichung, Taiwan, Republic of China;
5. College of Medicine, China Medical University, Taichung, Taiwan, Republic of China