Stoichkov, Biser B. “Lateral and Crestal Sinus Lift Complications: A Retrospective Comparative Study”. International Journal of Otorhinolaryngology and Head and Neck Surgery 9, no. 10 (September 27, 2023): 784–788. Accessed March 17, 2026. https://www.ijorl.com/index.php/ijorl/article/view/4059.