(1. Department of Cardiology, Center for Medical Health Care, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China;2. Department of Cardiology, the First Medical Center of Chinese PLA General Hospital, Beijing 100853, China;3. Department of Cardiology, No. 98;3.Hospital of Joint Logistic Support Force of People′s Liberation Army, Tianjin 300142, China, ;4. Department of Cardiology, Chengdu Third People′s Hospital, Chengdu 610031, China)
R541.75