Bag, T., A. Kyal, D. Saha, R. Dutta, and S. Mondal. “Isoflavone in Postmenopausal Women - Are They Really Effective? A Prospective Case Control Study”. Nepal Journal of Obstetrics and Gynaecology, vol. 7, no. 1, Oct. 2013, pp. 11-14, https://www.nepjol.info/index.php/NJOG/article/view/8826.