Ngoc, Nguyen, Nguyen Thuy, and Pham Thuy. “Clinical Efficacy of Enamel Matrix Derivative in Treatment of Periodontal Intra-Bony Defects”. Science and Technology Development Journal: Health Sciences 2, no. 2 (May 4, 2021): 155-161. Accessed April 2, 2025. http://stdjhs.scienceandtechnology.com.vn/index.php/stdjhs/article/view/462.