F. J. Trivedi, K. J. Deliwala, D. J. Deliwala, and S. V. Patel, “FIGO classification system (PALM-COEIN) for causes of abnormal uterine bleeding in non-gravid women”, Int J Reprod Contracept Obstet Gynecol, vol. 13, no. 5, pp. 1140–1143, Apr. 2024.