Jogi, S. R., D. Singh, and A. Garhewal. “A Prospective Open Label Randomized Controlled Trial Comparing the Effect of Letrozole and Mifepristone Pre-Treatment in Medical Termination of Pregnancy up to 9 Weeks”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 14, no. 7, June 2025, pp. 2157-63, doi:10.18203/2320-1770.ijrcog20251753.