1. Medical Records and Statistics Room, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
2. Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
3. School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750000, China
4. Department of Pathology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China