1. Department of Cardiology, General Hospital of Northern Theater Command, Shenyang, Liaoning 110016, China
2. Department of Cardiology, Xiamen Cardiovascular Hospital Xiamen University, Xiamen, Fujian 361102, China
3. Department of Cardiology, Nanjing First Hospital, Nanjing, Jiangsu 210006, China
4. Department of Structure Heart Disease, Fuwai Yunnan Cardiovascular Hospital, Kunming, Yunnan 650102, China
5. Department of Cardiology, Shanghai Chest Hospital, Shanghai 200030, China
6. Department of Cardiology, Ruijin Hospital Shanghai Jiaotong University School of Medicine, Shanghai 200025, China.