1. Department of Cardiothoracic Surgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, P.R. China
2. Department of Cardiology, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, Zhejiang 317500, P.R. China
3. Department of Cardiovascular Surgery, The Affiliated Cardiovascular Hospital of Shanxi Medical University and Shanxi Cardiovascular Hospital (Institute), Taiyuan, Shanxi 030024, P.R. China
4. Department of Cardiology and Central Laboratory, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, P.R. China