Prediction of Preterm Birth by Second Trimester Transvaginal Ultrasound Measurement of Cervical Length. A Prospective Observational Study at a Tertiary Care Hospital. L&S [Internet]. 2025 Apr. 7 [cited 2026 Oct. 18];6(2):07. Available from: https://www.lifenscience.org/index.php/life-and-science/article/view/850