Affiliation: | 1. Department of Neurosurgery, Second Affiliated Hospital, Hebei Medical University, Shijiazhuang 050000, China 2. Department of Neurosurgery, Third Hospital of Shijiazhuang, Shijiazhuang 050011, China 3. Department of Neurosurgery, First Hospital of Shijiazhuang, Shijiazhuang 050011, China |