1. Department of Emergency Medicine; National Taiwan University Medical College and National Taiwan University Hospital; Taipei Taiwan
2. Department of Internal Medicine (Cardiology); National Taiwan University Medical College and National Taiwan University Hospital; Taipei Taiwan
3. Institute of Preventive Medicine, School of Public Health; National Taiwan University; Taipei Taiwan
4. Institute of Environmental Medicine; China Medical University; Taichung Taiwan
5. Department of Internal Medicine (Cardiology); Min-Sheng General Hospital; Taoyuan Taiwan