1. State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Cardiac Arrhythmia Center, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
2. State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Cardiac Arrhythmia Center, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 167 Bei Li Shi Road, Xicheng District, Beijing 100037, China