1. Stroke Research Group, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
2. INSERM U894, Centre Hospitalier Sainte Anne, Sorbonne Paris Cité, Paris, France
3. APHP, Hotel-Dieu Hospital, Department of Nuclear Medicine, Paris, France
4. Stroke Unit, Addenbrooke's Hospital, Cambridge, UK
5. Department of Clinical Neurosciences, Wolfson Brain Imaging Centre, University of Cambridge, Cambridge, UK
6. Division of Anaesthesia, University of Cambridge, Cambridge, UK