محمد ر., and فادي خليل. “Comparaing the Effect of Discision Technique and Micro Osteo Perforation Technique on Loss Anchorage During Two –step retraction(A Clinical Study)”. Tishreen University Journal -Medical Sciences Series, vol. 45, no. 3, July 2023, pp. 259-7, https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/14577.