Ravnik, Janez, Borut Hribernik, and Boštjan Lanišnik. “Endoscopic Endonasal Approaches to the Clival Region”. Acta Medica Academica 49, no. 1, 2, 3 (January 28, 2021): 45–53. Accessed April 29, 2024. https://www.ama.ba/index.php/ama/article/view/424.