1. Neurosurgery Unit, Department of Head and Neck Sugery, Garibaldi Hospital, Catania, Italy,
2. Department of Neurosurgery, Health Sciences North, Northern Ontario School of Medicine, Sudbury, Ontario, Canada,
3. Department of Medicine, University of Cambridge, Cambridge CB2 OQQ, United Kingdom,
4. Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
5. Psychology Center Orestano-Pittera, “l’Intreccio” Association, San Giovanni la Punta (CT), Italy
6. Neurosurgical Clinic, AOUP “Paolo Giaccone”, Post Graduate Residency Program in Neurologic Surgery, Department of Biomedicine Neurosciences and Advanced Diagnostics, School of Medicine, University of Palermo, Palermo, Italy,
7. Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal,
8. Department of Medical Physics, University Hospital of Bologna, Bologna, Italy
9. Department of Neurosurgery, Policlinico “Tor Vergata”, University of Rome “Tor Vergata”, Rome, Italy.