1. Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, 300052, China
2. Intensive Care Unit, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, 121000, China
3. Department of Oncology, Tianjin Medical University General Hospital, Tianjin, 300052, China
4. Tianjin General Surgery Institute, Tianjin, 300052, China