Hassan, Sandy Shabaan, Iman M. Aboushady, and Gihane Gharib Madkour. “Effect of Periodontal Surgery on Tissue Plasminogen Activator and Plasminogen Activator Inhibitor Type-1 Gene Expression in Gingival Tissues of Periodontitis Patients: A Controlled Before-And-After Study”. Perio J 3, no. 1 (March 31, 2019): 7–17. Accessed January 19, 2022. https://perioj.com/ojs/index.php/perioj/article/view/2019.a2.