Affiliations:
1. Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University; National Clinical Research Center for Cardiovascular Diseases
2. Department of Cardiology, Taizhou Hospital of Zhejiang Province, Taizhou, China.
3. Department of Cardiology, Shengli oilfield Central Hospital, Shandong, China.
4. Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China.
*YW-L and XX-L contribute equally to this work
#Co-correspondance to:
1.Caihua Sang, MD, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2, Anzhen Road, Chaoyang District, 100029 Beijing, China.
E-mail: sch9613070@sina.com
2. Changsheng Ma, MD, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, No. 2, Anzhen Road, Chaoyang District, 100029 Beijing, China. E-mail:chshma@vip.sina.com