R. D., P. Sourya K. A., and L. A., “Comparative study of endometrial thickness with transabdominal ultrasonography and pelvis in perimenopausal women presenting with abnormal uterine bleeding and correlation with its histopathological findings”, Int J Reprod Contracept Obstet Gynecol, vol. 12, no. 7, pp. 2151–2155, Jun. 2023.