[1] Wuhan Univ, Renmin Hosp, Dept Cardiol, Wuhan 430060, Hubei Province, Peoples R China
[2] Dalian Med Univ, Affiliated Hosp 1, Dept Cardiol, Dalian 116021, Peoples R China
[3] Chinese Acad Med Sci, Fuwai Hosp, Beijing 100037, Peoples R China
[4] Chinese Acad Med Sci, Arrhythmia Ctr, Cardiovasc Inst, Beijing 100037, Peoples R China
[5] Guangdong Gen Hosp, Guangdong Prov Cardiovasc Inst, Dept Cardiol, Guangzhou 510080, Guangdong, Peoples R China
[6] Capital Univ Med Sci, Beijing Anzhen Hosp, Dept Cardiol, Beijing 100029, Peoples R China