Tseneva, Kristina, and Željka Perić Kačarević. “Challenges in Vitamin D Measurement and Its Role on Bone Regeneration”. International Journal of Dental Biomaterials Research 1 (December 18, 2023): 36–45. Accessed May 9, 2024. https://ijdbr.com/index.php/ijdbr/article/view/18.