1. Department of Brain Repair and Rehabilitation Institute of Neurology, University College London London UK
2. Department of Applied Health Research University College London London UK
3. Epidemiology, Biostatistics and Prevention Institute University of Zurich Zurich Switzerland
4. Neuroradiology, Institute of Neurosurgery Dr. A. Asenjo Santiago Chile
5. Diagnostic and Interventional Radiology Department, Faculty of Medicine, National Cancer Institute Vilnius University Vilnius Lithuania
6. Diagnostic Radiology Department, Faculty of Medicine Assiut University Assiut Egypt
7. Lysholm Department of Neuroradiology National Hospital for Neurology and Neurosurgery London UK