Affiliation: | 1. Department of Neurosurgery, The People's Hospital of Zhengzhou, Zhengzhou, China;2. Department of Neurosurgery, The Third People's Hospital of Qingdao, Qingdao, Shandong, China;3. Department of Neurosurgery, Brain Hospital, People's Hospital of Weifang, Weifang, Shandong, China;4. Department of Neurosurgery, Qianfoshan Hospital Affiliated to Shandong University, Jinan, Shandong, China |