“THE RELATIONSHIP BETWEEN THE DEVELOPMENT OF RICKETS AND THE LEVEL OF 25 (OH) D IN THE BLOOD”, Euro. Jour. of Inte. Res. and Dev., vol. 33, pp. 21–24, Nov. 2024, Accessed: Feb. 14, 2026. [Online]. Available: https://ejird.journalspark.org/index.php/ejird/article/view/1211