Department of Neurology, Yale School of Medicine, 15 York Street, New Haven, CT, 06510, USA. Department of Neurology, Heidelberg University, Heidelberg, Germany. Department of Neurosurgery, Ludwig Maximilian University (LMU), Munich, Germany. Division of Neuro-Oncology, Department of Neurology, Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, USA. Department of Neurology, Yale School of Medicine, 15 York Street, New Haven, CT, 06510, USA. joachim.baehring@yale.edu. Department of Neurosurgery, Yale School of Medicine, New Haven, USA. joachim.baehring@yale.edu.