Comprehensive analysis of PD-L1 expression in glioblastoma multiforme

Heiland, Dh; Haaker, G; Delev, D; Mercas, B; Masalha, W; Heynckes, S; Gabelein, A; Pfeifer, D; Carro, M; Weyerbrock, A; Prinz, M; Schnell, O