1. Department of Cardiology, the second people’s hospital of Chengdu, Chengdu Sichuan Province, China
2. Department of Cardiology, Cent S Univ, Xiangya Hosp 2, Changsha Hunan, China
3. Department of Epidemiology and Health Statistics, West China School of Public Health, Sichuan University, Chengdu Sichuan, China
4. Department of Cardiology, Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing China
5. Department of Epidemiology &health statistics, School of Public Health, Xiangya Medical College, Central South University, Changsha Hunan, China
6. Department of Cardiology, Sichuan Provincal Pepole’s hospital, Chengdu Sichuan Province, China
7. Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan