1. Harvey Cushing Neuro‐Oncology Laboratories, Department of Neurosurgery Brigham and Women's Hospital, Harvard Medical School Boston MA 02115 United States
2. Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 United States
3. Department of Neurosurgery, Center for Neurosurgery Faculty of Medicine and University Hospital University of Cologne Cologne 50937 Germany
4. Department of Chemistry University of Zurich Winterthurerstrasse 190 Zurich 8057 Switzerland
5. Department of Radiology Brigham and Women's Hospital, Harvard Medical School Boston MA 02115 United States
6. Department of Chemistry University of Western Ontario London ON N6C 4K3 Canada
7. Department of Neurosurgery Brain Tumor Center, Erasmus Medical Center Rotterdam 3015 CN the Netherlands
8. Department of Pathology Dana‐Farber Cancer Institute and Brigham and Women's Hospital, Harvard Medical School Boston MA 02115 United States
9. Department of Neuroscience and Physiology State University of New York Upstate Medical University Syracuse NY 13210 United States