1 Clinical Medical College of Jining Medical University, Jining, China. Electronic address: xingbaojie66@163.com.
2 Clinical Medical College of Jining Medical University, Jining, China.
3 Department of Emergency Surgery, Affiliated Hospital of Jining Medical University, No.89 Guhuai Road, Jining, 272000, China; Clinical Medical College of Jining Medical University, No.133 Hehua Road, Jining, 272013, China. Electronic address: 237849399@qq.com.