[1] Univ Freiburg, Med Ctr, Translat NeuroOncol Res Grp, D-79106 Freiburg, Germany
[2] Univ Freiburg, Med Ctr, Dept Neurosurg, D-79106 Freiburg, Germany
[3] Freiburg Univ, Fac Med, D-79106 Freiburg, Germany
[4] Univ Freiburg, Med Ctr, Dept Med 1, D-79106 Freiburg, Germany
[5] Univ Aachen, Dept Neurosurg, D-79106 Aachen, Germany
[6] Univ Freiburg, Fac Med, Inst Neuropathol, D-79106 Freiburg, Germany
[7] Univ Freiburg, Fac Med, Berta Ottenstein Programme Clinician Scientists, D-79106 Freiburg, Germany