1. Medical Research Center Union Shenzhen HospitalHuazhong University of Science and Technology Shenzhen China
2. Key Laboratory of Fertility Preservation and Maintenance (Ministry of Education) Ningxia Medical University Yinchuan China
3. Department of Neurosurgery Union Shenzhen HospitalHuazhong University of Science and Technology Shenzhen China
4. Department of Gastroenterology the General HospitalNingxia Medical University Yinchuan China
5. Department of Radiology the General HospitalNingxia Medical University Yinchuan China