1. Department of Cardiovascular Medicine, East Hospital, Tongji University School of Medicine, Shanghai 200120, P.R. China
2. Department of Cardiology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
3. Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
4. Department of Cardiovascular Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, P.R. China