1. Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, England
2. Department of Neurology, John Hunter Hospital, Hunter New England Local Health District, University of Newcastle, Newcastle, Australia
3. Clinical Neuroscience, St George’s University of London, London, England
4. Neuroradiology, Atkinson Morley Neuroscience Centre, St George’s Healthcare Foundation Trust, London, England