1. Ningxia Key Laboratory of Cerebrocranial Disease, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
2. Department of Microbiology and Biochemical Pharmacy, School of Pharmacy, Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
3. Ningxia Key Laboratory of Clinical and Pathogenic Microbiology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
4. Laboratory of Cellular and Molecular Radiation Oncology, The Affiliated Taizhou Hospital, Wenzhou Medical University, Taizhou, Zhejiang 317000, P.R. China