MIB1 and meningioma: We identified 11 biomarkers (PR, cyclin A, TOP2A, p21, MCM6, H3k27me3, Bcl-2, p53, VEGF, PHH3 and Ki-67/MIB-1) correlated with prognostic outcomes of OS, RFS, and PFS of meningioma patients by meta-analysis of at least two or more studies.