Jain, M., and S. Chakraborty. “Evaluation of Abnormal Uterine Bleeding With Transvaginal Sonography”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 7, June 2017, pp. 2794-9, doi:10.18203/2320-1770.ijrcog20172556.