1. Department of Emergency Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan (R.O.C.)
2. Department of Emergency Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan (R.O.C.)
3. College of Medicine, Chang Gung University, Taoyuan, Taiwan (R.O.C.)
4. Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan (R.O.C.)