1. Stroke Research Centre, Institute of Neurology, University College London, London, UK
2. Department of Neurology and Stroke Unit ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
3. Department of Neurosurgery, Cantonal Hospital St. Gallen, St. Gallen, Switzerland
4. Department of Statistical Science, University College London, London, UK
5. Department of Neurology and Stroke Center, Inselspital, Bern, Switzerland
6. New Zealand Brain Research Institute, Christchurch, New Zealand
7. Haemostasis Research Unit, Department of Haematology, University College London, London, UK
8. Neuroradiological Academic Unit, Department of Brain Repair and Rehabilitation, UCL Institute of Neurology, London, UK
9. Lysholm Department of Neuroradiology, National Hospital for Neurology and Neurosurgery, London, UK
10. Centre for Clinical Brain Sciences, School of Clinical Sciences, The University of Edinburgh, Edinburgh, UK
11. Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart and Chest Hospital, Liverpool, UK
12. Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
13. Institute of Neuroscience & Psychology, University of Glasgow and Queen Elizabeth University Hospital, Glasgow, UK
14. Department of Molecular Neuroscience, UCL Institute of Neurology and National Hospital for Neurology and Neurosurgery, London, UK
15. Stroke Research Centre, Institute of Neurology, UCL Queen Square Institute of Neurology and National Hospital of Neurology and Neurosurgery, London, UK