1. Department of Cardiothoracic Surgery, Heping Hospital Affiliated to Changzhi Medical College, Changzhi 046000, China
2. Department of Science and Education, Heping Hospital Affiliated to Changzhi Medical College, Shanxi, Changzhi 046000, China
3. Department of Radiotherapy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China