Gebretsadik, H. G. “Possible Surgical Complications of the Zygomatic Implant in Oro-Facial Reconstructive Surgery: A Systematic Review”. Orapuh Journal, Vol. 2, no. 2, Oct. 2021, p. e818, https://orapuh.org/ojs/ojs-3.1.2-4/index.php/orapj/article/view/60.