Mohammed, N. B. ., M. A. Alsaadi, S. S. N. Sultan, and A. Aliakbar. “Effect of 0.2% Hyaluronic Acid Gel Topical Application on Healing Period of Oroantral Fistula Treated With Buccal Flap”. Open Access Macedonian Journal of Medical Sciences, vol. 8, no. D, Oct. 2020, pp. 194-7, doi:10.3889/oamjms.2020.5157.