1. Fu Wai Hospital; National Center for Cardiovascular Diseases; Beijing China
2. Affiliated Zhongshan Hospital of Fudan University; Shanghai China
3. The Second Affiliated Hospital of Zhejiang University School of Medicine; Hangzhou China
4. Affiliated Anzhen Hospital of Capital Medical University; Beijing China
5. Guangdong General Hospital; Guangzhou China
6. Shanghai Sixth People's Hospital; Shanghai China
7. Chinese PLA General Hospital; Beijing China