Chauhan, M., Gupta, N., Dwivedi, S. and Agarwal, S. 2017. A study to compare the efficacy of ormeloxifene with norethisterone and conventional oral contraceptive pills. International Journal of Reproduction, Contraception, Obstetrics and Gynecology. 6, 10 (Sep. 2017), 4469–4472. DOI:https://doi.org/10.18203/2320-1770.ijrcog20174426.