1. Foramen magnum and high cervical cord lesions stimulating degenerative disease of the nervous system;Abbott;Ohio St Med J,1950
2. Transoral transpalatal approach for resection of clival chordoma;Alonso;Laryngoscope,1971
3. Microscopic analysis of the anastomoses between the cranial nerves;Bischoff,1865
4. Venous drainage in the craniocervical region;Braun;Neuroradiology,1977
5. Meningiomas of the posterior fossa;Castellano;Acta Radiol,1953