Betha, Kalpana, Lavanya Malavatu, and Sreeveena Talasani. “Distribution of Causes of Abnormal Uterine Bleeding Using New FIGO Classification System-PALM COEIN: A Rural Tertiary Hospital Based Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6, no. 8 (July 26, 2017): 3523–3527. Accessed December 29, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/3105.