1. Section of Histology and Embryology, Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Italy
2. 1st Department of Internal Medicine, Faculty of Medicine, Comenius University and University Hospital, Bratislava, Slovakia
3. 2nd Department of Surgery, Faculty of Medicine, Masaryk University and St. Anne’s University Hospital, Brno, Czech Republic
4. Department of Research, IRCCS ISMETT—Mediterranean Institute for Transplantation and Advanced Specialized Therapies, Palermo, Italy
5. Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL, USA