Siddu, S., V. Dhama, R. Chaudhary, and S. Singh. “The Study of Outcome of Pregnancy With First Trimester Vaginal Bleeding and Its Complications”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 11, no. 4, Mar. 2022, pp. 1150-5, doi:10.18203/2320-1770.ijrcog20220896.