Affiliation: | 1. Department of Tumor Surgery, The First People's Hospital of Yinchuan, Yinchuan, Ningxia, China;2. Department of Breast Cancer Surgery, Gansu Provincial Cancer Hospital, Lanzhou, Gansu, China;3. Postgraduate School, Ningxia Medical University, Yinchuan, Ningxia, China;4. Department of Neurology, Ningxia Hui Autonomous Region People's Hospital, The First Affiliated Hospital of Northwest University for Nationalities, Yinchuan, Ningxia, China |