1. School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, Taiwan.
2. Division of Cardiology, Department of Internal Medicine, Chi Mei Medical Center, Tainan, Taiwan.
3. Division of Cardiovascular Surgery, Department of Surgery, Chi Mei Medical Center, Tainan, Taiwan.
4. Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy and Science, Tainan, Taiwan.