Ugboma, E. W., and V. N. Akagbue. “Ultrasonic Optic Nerve Diameter Measurement Among Pregnant Women in a Specialist Hospital, Port Harcourt, Rivers State, Nigeria”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 13, no. 12, Nov. 2024, pp. 3452-6, doi:10.18203/2320-1770.ijrcog20243454.