1. Department of Neurosurgery, Fuzhou 900th Hospital, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, Fujian, China;
2. Department of Neurosurgery, Oriental Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China; and
3. Department of Neurosurgery, Fuzhou First Hospital Affiliated to Fujian Medical University, Fuzhou, Fujian, China