Ravnik, J., Hribernik, B. and Lanišnik, B. 2021. Endoscopic Endonasal Approaches to the Clival Region. Acta Medica Academica. 49, 1, 2, 3 (Jan. 2021), 45–53. DOI:https://doi.org/10.5644/ama2006-124.306.