Shahid, Kiran, Nasir Khan, and Hafiz Muhammad Ahsan Ayub. “Sonographic Correlation of Fetal Foot Length As a Reliable Parameter for Estimation of Gestational Age in the Second and Third Trimester of Pregnancy”. Biological and Clinical Sciences Research Journal 6, no. 1 (January 31, 2025): 203–206. Accessed April 11, 2026. https://bcsrj.com/ojs/index.php/bcsrj/article/view/1645.