Affiliation: | 1. Department of Emergency, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China;2. Department of Cardiology, Beijing An Zhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, The Key Laboratory of Remodeling-related Cardiovascular Disease, Ministry of Education, Beijing 100050, China;3. Department of Cardiology, Beijing Da Xing Hospital, Capital Medical University, Beijing 100050, China |