Mittal, SP, Harendra Singh Sandhu, and Bant Singh. “Study of Vitamin D Levels in Patients With Chronic Kidney Disease”. Bangladesh Journal of Medical Science 17, no. 4 (September 19, 2018): 652–660. Accessed July 17, 2024. https://banglajol.info/index.php/BJMS/article/view/38332.