Guerra, G., F. Caranci, D. Tafuri, A. Soscia, M. Cinelli, A. Russo, L. Brunese, and S. Montagnani. “Segmental Hypoplasia of the Basilar Artery: A Case Report and Review of Literature”. Italian Journal of Anatomy and Embryology, vol. 116, no. 2, Nov. 2011, p. 87, https://oajournals.fupress.net/index.php/ijae/article/view/4661.