Kumari, G., and K. Poonia. “Sonographic and Histopathological Correlation and Evaluation of Causes of Abnormal Uterine Bleeding in Perimenopausal Women”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 8, no. 10, Sept. 2019, pp. 3920-5, doi:10.18203/2320-1770.ijrcog20194355.