Extended Endoscopic Endonasal Approach with or without C1−C2 Anterior Endoscopic Screw Fixation for Cranio-Vertebral Junction Lesions: Lesson Learned and Technical Nuances - Iacoangeli, Maurizio; Somma, Lucia Giovanna Maria Di; Re, Massimo; Nasi, Davide; Rienzo, Alessandro Di; Benigni, Roberta; Specchia, Nicola; Scerrati, Massimo (Journal of Neurological Surgery Part B: Skull Base, 2018)