Ali, H., Radhakrishnan, G. and Singh, A. 2017. Comparison of metformin and N-acetylcysteine on metabolic parameters in women with polycystic ovarian syndrome. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 6, 7 (Jun. 2017), 3076–3084. DOI:https://doi.org/10.18203/2320-1770.ijrcog20172938.