Mummalaneni G, Myneni KK. Effects of calcium-vitamin D and metformin on the menstrual cycle and ovulation in polycystic ovary syndrome patients in a tertiary care teaching hospital. Int J Reprod Contracept Obstet Gynecol [Internet]. 2021 Mar. 24 [cited 2025 Dec. 4];10(4):1442-7. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/9645