Vijayakrishnan, Mala, and Navina Nathan. 2025. “An Ultrasound Study of Foetal Head-Perineum Distance in Term Pregnant Women to Estimate Successful Vaginal Delivery”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 15 (1):266-72. https://doi.org/10.18203/2320-1770.ijrcog20254292.