MGMT-Positive vs MGMT-Negative Patients With Glioblastoma: Identification of Prognostic Factors and Resection Threshold. Issue 4 (15th March 2021) - Katsigiannis, Sotirios; Grau, Stefan; Krischek, Boris; Er, Kadir; Pintea, Bogdan; Goldbrunner, Roland; Stavrinou, Pantelis