1. Department of Cardiology, National Clinical Research Center for Cardiovascular Diseases, Beijing Anzhen Hospital Capital Medical University Beijing China
2. Department of Cardiology Taizhou Hospital of Zhejiang Province Taizhou China
3. Department of Cardiology Shengli Oilfield Central Hospital Dongying Shandong China
4. Department of Cardiology Zhongnan Hospital of Wuhan University Wuhan China