1. Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases; Chinese Academy of Medical Sciences and Peking Union Medical College; Beijing China
2. Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital; Fudan University; Shanghai China
3. Department of Cardiology; Beijing Hospital; Beijing China
4. Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital; Guangdong Academy of Medical Sciences; Guangzhou China
5. Department of Cardiology; First Affiliated Hospital of Harbin Medical University; Harbin China
6. Department of Cardiology; Nanjing Drum Tower Hospital; Nanjing PR China