Ansari, Arshi, and Savita Chandra. “Serum 25-OH Vitamin D and Insulin Resistance in Women With Polycystic Ovary Syndrome”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 12, no. 3 (February 27, 2023): 629–633. Accessed October 2, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/12571.