Gupta, V., Chaurasia, A., Khatoon, S., & Singh, U. B. (2017). A study of N-acetyl cysteine, metformin and vitamin D3 with calcium on clinical and metabolic profile in PCOS. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 6(10), 4372–4376. https://doi.org/10.18203/2320-1770.ijrcog20174407