1. Department of Cardiology, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing Anzhen Hospital, Beijing, China
2. Department of Epidemiology, Beijing Institute of Heart, Lung and Blood Vessel Diseases, Capital Medical University, Beijing Anzhen Hospital, Beijing, China
3. Division of Cardiology, University of North Carolina, Chapel Hill, North Carolina, United States
4. Department of Cardiology, Peking University First Hospital, Beijing, China
5. Division of Cardiology, Geffen School of Medicine at University of California, Los Angeles, California, United States
6. Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Fudan University, Zhongshan Hospital, Shanghai, China
7. International Quality Improvement Department, American Heart Association, Dallas, Texas, United States
8. Department of Cardiology, Cardiovascular Research Institute, General Hospital of Northern Theater Command, Shenyang, Liaoning, China