1. Sumy State University, Sumy, Ukraine
2. Faculty of Medicine, University of St. Andrews, St. Andrews, Scotland, UK
3. Department of Neurological Diseases, Poltava State Medical University, Poltava, Ukraine
4. Department of Clinical Neurosciences, School of Clinical Medicine, University of Cambridge, Cambridge, UK
5. Barts and the London School of Medicine and Dentistry, London, UK
6. Cardiff University School of Medicine, Cardiff University, Wales, UK
7. Norwich Medical School, University of East Anglia, Norwich, UK
8. Royal College of Surgeons in Ireland, University of Medicine and Health Sciences, Dublin, Ireland
9. Faculty of Medicine, Bangalore Medical College and Research Institute, Karnataka, India
10. Department of Neurosurgery, Hannover Medical School, Hannover, Germany
11. Drexel University College of Medicine, Philadelphia, PA, USA