1. Department of Vascular Surgery, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China
2. Intensive Care Unit of Vascular Surgery, Xuanwu Hospital of Capital Medical University, Beijing 100053, P.R. China
3. Department of Oncology, Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, P.R. China