9Zachary TL, Russell IB, Laligam NS. Proposed grading system to predict the extent of resection and outcome for cranial base meningiomas [J]. J Neurosurg, 1999, 45: 221～230.
10Takeuchi H, Kubata T, Kabuto M, et al . Prediction of recurrence in histologically benign meningiomas: prolifereting cell nuclear antigen and Ki-67 mmuunohistochemical study [J]. Surg Neurol, 1997, 48(5): 501～506.
