Zulfiqar, S. et al. 2025. Diagnostic Accuracy of Transperineal Sonography in Determining Accurate Cervical Length At 24-32 Weeks of Gestation. Pakistan Journal of Medicine and Dentistry. 14, 3 (Jul. 2025), 306–313. DOI:https://doi.org/10.36283/ziun-pjmd14-3/047.