1. Department of Neurosurgery, Manchester Centre for Clinical Neurosciences, Salford Royal NHS Foundation Trust , Manchester , UK
2. Department of Neuro-Oncology, The Christie Hospital NHS Foundation Trust , Manchester , UK
3. Geoffrey Jefferson Brain Research Centre, Manchester Centre for Clinical Neurosciences, Division of Neuroscience, School of Biological Sciences, Faculty of Biology, Medicine, and Health, University of Manchester and Manchester Academic Health Sciences Centre , Manchester , UK