Center of Arrhythmia;
Fuwai Hospital;
Chinese Academy of Medical Sciences;
Peking union Medical College;
Beijing;
China;
Department of Cardiology Tian Jing Chest Hospital;
Tianjing;
China;
Department of Cardiology;
FuJian Provincial Hospital;
Fuzhou;
China;
Department of Cardiology;
ZhongShan Hospital;
FuDang University;
Shanghai;
China;
Department of Cardiology;
WuHan Asia Cardiology Hospital;
Wuhan;
China;
Department of Cardiology;
the Ftrst Affiliated Hospital of Nangjing Medical University NanJing;
China;
Department of Cardiology;
AnHui Provincial Hospital;
Hefei;
China;
Department of Cardiology Sun- Yat-Sen Memorial Hospital;
Guangzhou;
China;
Department of Cardiology the First Affiliated Hospital of XinJiang Medical University;
Urumichi;
China;
Department of Cardiology the Second Affiliated Hospital of ZheJiang University of School of Medical;
Hangzhou;
China;