[1] Chinese Peoples Liberat Army Gen Hosp, Natl Clin Res Ctr Geriatr Dis, Med Ctr 2, Dept Cardiol, Beijing 100853, Peoples R China
[2] Chinese PLA Med Coll, Med Ctr 6, Pulm Vessel & Thrombot Dis, Beijing, Peoples R China
[3] Capital Med Univ, Beijing Tongren Hosp, Dept Geriatr, Beijing, Peoples R China
[4] Beijing Taikang Yanyuan Rehabil Hosp, Dept Cardiol, Beijing, Peoples R China
[5] Chinese Acad Med Sci, Fuwai Hosp, Arrhythmia Ctr, Beijing, Peoples R China
[6] Sichuan Univ, West China Hosp, Geriatr Ctr, Chengdu, Peoples R China
[7] Univ Liverpool, Liverpool John Moores Univ, Liverpool Ctr Cardiovasc Sci, Liverpool, England
[8] Liverpool Heart & Chest Hosp, Liverpool, England
[9] Aalborg Univ, Danish Ctr Hlth Serv Res, Dept Clin Med, Aalborg, Denmark