1. Department of Neurosurgery, ASUFC “Santa Maria della Misericordia,” Piazzale Santa Maria della Misericordia, Udine (UD), Italy
2. Institute of Anatomic Pathology, ASUFC “Santa Maria della Misericordia,” Udine, Italy
3. AYA Oncology and Pediatric Radiotherapy Unit, CRO IRCCS, Via Franco Gallini 2, Aviano (PN), Italy