1. Department of Cardiovascular Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330036, P.R. China
2. Department of Cardiothoracic Surgery, Jiujiang No. 1 People's Hospital, Jiujiang, Jiangxi 332000, P.R. China
3. Department of Bone and Soft Tissue Oncology, The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, Jiangxi 330006, P.R. China
4. Department of Clinical Medicine, Medical College of Nanchang University, Nanchang, Jiangxi 330036, P.R. China