1. Fu Wai Hospital, National Center for Cardiovascular Diseases Beijing China
2. Affiliated Ruijin Hospital of Shanghai Jiaotong University School of Medicine Shanghai China
3. Affiliated Anzhen Hospital of Capital Medical University Beijing China
4. Daqing Oil Field General Hospital Daqing China
5. Affiliated Nanjing First Hospital of Nanjing Medical University Nanjing China
6. General Hospital of Shenyang Military Region Shenyang China