Malik SA, Haider SS, Ayub U, Sher A, Kayani UZ. COMPARISON OF CONNECTIVE TISSUE GRAFT AND XENOGENIC COLLAGEN MATRIX IN THE TREATMENT OF RT1 GINGIVAL RECESSIONS – A SYSTEMATIC REVIEW AND META ANALYSIS. Pak Oral Dent J. 2023;43(3):124-135. Accessed April 18, 2026. https://www.podj.com.pk/index.php/podj/article/view/744