1. Department of Neurosurgery, King’s College Hospital NHS Foundation Trust, King’s Health Partners, London, UK;
2. Department of Neurosurgery, Charing Cross Hospital, London, UK;
3. Deparment of Haematology, King’s College Hospital NHS Foundation Trust, King’s Health Partners, London, UK;
4. Department of Neuropathology, King's College Hospital NHS Foundation Trust, King's Health Partners, London, UK;
5. Clinical Neurosciences, Institute of Psychiatry, Psychology & Neuroscience, London, UK