Department of Cardiology, Peking University First Hospital, Beijing, China. National Clinical Research Study Center for Kidney Disease, State Key Laboratory for Organ Failure Research, Renal Division, Nanfang Hospital, Southern Medical University, Guangzhou, China. Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai, China. Department of Cardiology, the Second Affiliated Hospital of Nanchang University, Jiangxi, China. Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China. School of Health Administration, Anhui Medical University, Hefei, China. Department of Neurology, Huashan Hospital, Fudan University, Shanghai, China. Department of Cardiology and. Department of Cardiology, Xiangya Hospital, Central South University, Changsha, China. Departments of Cardiology and. Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China. Department of Cardiology, Tangdu Hospital, the Fourth Military Medical University, Xi'an, China. Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China; and. Department of Cardiology, Peking University First Hospital, Beijing, China; huoyong@263.net.cn lijianpingmedmail@126.com.