Kaur, Sapneet, Harleen Kaur, Susheel Kumar Sharma, and Amarjeet Singh Bhatia. “Prevalence of Vitamin D Deficiency in Patients With Established Coronary Artery Disease”. International Journal of Research in Medical Sciences 8, no. 5 (April 27, 2020): 1629–1631. Accessed October 14, 2025. https://www.msjonline.org/index.php/ijrms/article/view/8042.