Ngoc, Nguyen, Nguyen Thuy, and Pham Thuy. 2021. “Clinical Efficacy of Enamel Matrix Derivative in Treatment of Periodontal Intra-Bony Defects”. VNUHCM Journal of Health Sciences 2 (2), 155-61. https://doi.org/https://doi.org/10.32508/stdjhs.v2i2.462.