Fig. 1From: Clinical significance of NF2 alteration in grade I meningiomas revisited; prognostic impact integrated with extent of resection, tumour location, and Ki-67 indexPFS of patients with WHO grade I meningioma evaluated using the Kaplan–Meier method followed by the log-rank test for each variable, A: EOR, B: tumour location, C: driver gene mutation, D: subgroups with mutation and location. EOR: the extent of resection; PFS: progression-free survivalBack to article page