1. Institute of Neuroscience, Department of Neurosurgery, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
2. Department of Clinical Medicine, The Second Clinical School of Guangzhou Medical University, Guangzhou 510182, China
3. Department of Neurosurgery, The First Affiliated Hospital and College of Clinical Medicine of Henan University of Science and Technology, Luoyang, Henan 471003, China