1. Neurosurgery Unit, Department of Neurosciences, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy;
2. Sezione di Traumatologia Cranica, Società Italiana di Neurochirurgia (SINCh), Padua, Italy;
3. Department of Neurosurgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA;
4. Division of Neurosurgery, Muhimbili Orthopaedic Hospital, Dar Es Salaam, Tanzania;
5. Och Spine at NewYork-Presbyterian/Weill Cornell Medical Center, New York, New York, USA;
6. Global Neurosurgery Laboratory, Division of Neurosurgery, SUNY Downstate Health Sciences University, Brooklyn, New York, USA;
7. Division of Neurosurgery, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines;
8. Translational Neuroscience Research Lab, School of Medicine, Universidad de La Sabana, Chia, Colombia;
9. Neurosurgery Department, Fundacion Santa Fe De Bogota, Bogota, Colombia;
10. Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA;
11. Chair VIU-NED Foundation, Hospital de la Ribera, Alzira, Valencia, Spain;
12. Spine Center, Hospital Del Mar, Barcelona, Spain;
13. Division of Neurosurgery, University of Nigeria Teaching Hospital, Enugu, Nigeria;
14. Division of Neurosurgery, College of Medicine, University of Nigeria Nsukka, Ituku/Ozalla Campus, Enugu, Nigeria;
15. Section of Neurosurgery, Department of Surgery, St. Louis University, St. Louis, Missouri, USA;
16. Division of Neurosurgery, Tenwek Hospital, Bomet, Kenya;
17. Department of Neurosurgery, Loma Linda University, Loma Linda, California, USA;
18. Department of Neurosurgery, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA;
19. Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA;
20. Aga Khan University Hospital, Nairobi, Kenya;