1. Department of Cardiology, Institute of Cardiovascular Diseases, First Affiliated Hospital of Dalian Medical University, Dalian, China
2. Department of Cardiology, Central Hospital of Zhuanghe City, Dalian, China
3. Department of Critically Care Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, China
4. Department of Graduate School, Dalian Medical University, Dalian, China