1. Graduated School; Ningxia Medical University; Yinchuan, Ningxia China
2. Department of Radiation Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education); Peking University Cancer Hospital and Institute; Beijing China
3. Department of Radiation Oncology; General Hospital of Ningxia Medical University; Yinchuan, Ningxia China
4. Cancer Institute; Ningxia Medical University; Yinchuan, Ningxia China
5. Department of Laboratory Medicine; General Hospital of Ningxia Medical University; Yinchuan, Ningxia China