PO-1083 The dual inhibitor BEZ235 radiosensitizes HNSCC cells due to impairment of the DSB repair. (April 2019) - Arenz, A.; Balzer, V.; Dreffke, K.; Rieckmann, T.; Köcher, S.; Dikomey, E.; Engenhart-Cabillic, R.; Wittig, A.; Schötz, U.