1. Department of Cardiology, The First Affiliated Hospital of Air Force Medical University Xi'an China
2. Department of Cardiology, The People Hospital of Liaoning Province Shenyang China
3. Department of Cardiology, TEDA International Cardiovascular Hospital Tianjin China
4. Department of Cardiology, Tianjin Chest Hospital Tianjin China
5. Department of Cardiology, Daqing Oilfields General Hospital Daqing China
6. Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University Harbin China
7. Medical Research and Biometrics Center, National Center for Cardiovascular Diseases Beijing China
8. Catheterization Laboratories, Fu Wai Hospital, National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College, National Clinical Research Center for Cardiovascular Diseases Beijing China