Combined Endoscopic Endonasal and Open Transmandibular–Transcervical Approach for Management of Giant Clival Chordomas Extended to the Craniovertebral Junction - Nasi, Davide; Balercia, Paolo; Girotto, Riccardo; Specchia, Nicola; Dallari, Stefano; Capece, Mara; Scerrati, Massimo; Iacoangeli, Maurizio (Journal of Neurological Surgery Part B: Skull Base, 2019)