Sayyed, Bushra, and Shamila Ijaz Munir. “Diagnostic Accuracy of Mid-Pregnancy Transvaginal Ultrasonography of the Cervical Length in Predicting Caesarean Section Risk in Primigravida Females”. Annals of King Edward Medical University 28, no. Special Issue (Jul, Sep) (November 24, 2022): 317–322. Accessed November 21, 2024. https://annalskemu.org/journal/index.php/annals/article/view/5185.