Makhsudov, Javidan, and Resul Yilmaz. “Vitamin D Deficiency in Children: Vitamin D Deficiency in Children”. Chronicles of Precision Medical Researchers 1, no. 1 (September 3, 2020): 8–19. Accessed December 26, 2024. https://chronpmr.com/index.php/cpmr/article/view/7.