Gupta, N., Dwivedi, S., Dwivedi, G. N., Sharma, B., & Gupta, P. (2017). Uterine cavity evaluation in infertile patients with transvaginal sonography, saline infusion sonography and hysteroscopy. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, 5(6), 1879–1882. https://doi.org/10.18203/2320-1770.ijrcog20161682