1. Division of Cardiology, Department of Internal Medicine, New Taipei City Municipal Tucheng Hospital, New Taipei City, Taiwan.
2. The Cardiovascular Department, Chang Gung Memorial Hospital, Linkou, Taoyuan City, Taiwan.
3. College of Medicine, Chang Gung University, Taoyuan City, Taiwan.
4. Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan City, Taiwan.