1. Department of Cardio‐Thoracic Surgery the Fourth Affiliated Hospital of Guangxi Medical University Liuzhou P.R. China
2. Department of Cardiology the Second Nanning People's Hospital (the Third Affiliated Hospital of Guangxi Medical University) Nanning P.R. China
3. Department of Intensive Care Unit the Fourth Affiliated Hospital of Guangxi Medical University Liuzhou P.R. China
4. Department of Cardiology Affiliated Hospital of Guilin Medical University Guilin P. R. China