1. Department of Neurosurgery, Romodanov Institute of Neurosurgery, National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine
2. Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal
3. Department of Head and Neck Surgery, Neurosurgery Unit, Garibaldi Hospital, Catania, Italy
4. Department of Neurosurgery, Trauma and Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
5. Department of Neurosurgery, Azienda Ospedaliera Universitaria Pisana (AOUP), Pisa, Italy
6. Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
7. Department of Spinal Pathologies, Romodanov Institute of Neurosurgery, National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine