1 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. Electronic address: robertacostanzo3@gmail.com.
2 Texas A&M University College of Medicine, College Station, Texas, USA.
3 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.
4 Department of Head and Neck Surgery, Neurosurgery Unit, Garibaldi Hospital, Catania, Italy.