Wadhawan, Urvi Tanna, Neelima P. Shah, and Ajit N. Patil. “Prediction of Preterm Labour by Cervical Length”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6, no. 7 (June 24, 2017): 2978–2982. Accessed October 7, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/2866.