1. Department of Cardiology, Suzhou Hospital of Anhui Medical University (Suzhou Municipal Hospital of Anhui Province) , 299 Bianhe Road , Suzhou 234000, China
2. Department of Internal Medicine, People's Hospital of Hailing Island Economic Development Pilot Zone , No. 5236 Yangzha Road, Arctic Village Committee, Zhapo Town, Hailing Island Experimental Zone , Yangjiang, Guangzhou 529500, China
3. Department of Cardiology, Aerospace Center Hospital , 15 Yuquan Road, Haidian District , Beijing 100049, China