Verma S, Singh Meena B, Pooja P, Narain Sehra R. A study of cervical length measured ultrasonographically in prediction of preterm delivery. Obg Rev: J Obstet Gynecol [Internet]. 2017Dec.31 [cited 2024Nov.24];3(4):38-3. Available from: https://obstetrics.medresearch.in/index.php/joog/article/view/26