Independent prognostic impact of DNA methylation class and chromosome 1p loss in WHO grade 2 and 3 meningioma undergoing adjuvant high-dose radiotherapy: comprehensive molecular analysis of EORTC 22042–26042

Sybren L. N. Maas, Philipp Sievers, Damien C. Weber, Michael Weller, Martin J. van den Bent, Maximilian J. Mair, Johan M. Kros, Fransesca Carparrotti, Andreas von Deimling, Villà Freixa Salvador, Saskia M. Peerdeman, José Casas-Martín, Thierry Gorlia, Felix Sahm, Matthias Preusser