1. The First Affiliated Hospital of Jiamusi University, Department of General Surgery, Jiamusi 154000, China
2. The First Affiliated Hospital of Jiamusi University, Department of Tumour Surgery, Jiamusi 154000, China
3. Jiamusi University, Department of Pathophysiology, Jiamusi 154000, China
4. The Tumor Hospital of Jiamusi, Department of Tumor, Jiamusi 154000, China
5. The First Affiliated Hospital of Jiamusi University, Intensive Care Unit, Jiamusi 154000, China