1 Department of Pathology, Division of Neuropathology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA.
2 Pathobiology and Translational Sciences Program, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA.
3 Neurosciences Curriculum, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA.
4 Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA.
5 Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA.
6 Department of Neurosurgery and Glioblastoma Translational Center of Excellence, Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
7 Department of Medicine, Division of Regenerative Medicine, University of California, San Diego, San Diego, California, USA.
8 Ludwig Cancer Research, San Diego, California, USA.