The Intratumoral Heterogeneity Reflects the Intertumoral Subtypes of Glioblastoma Multiforme: A Regional Immunohistochemistry Analysis oleh Natalie Bergmann, Claire Delbridge, Jens Gempt, Annette Feuchtinger, Axel Walch, Lucas Schirmer, Wolfram Bunk, Thomas Aschenbrenner, Friederike Liesche-Starnecker, Jürgen Schlegel