Shamoona Rashid, Uzma Mumtaz, Ayesha Naeem, Sadia Hanif, Amna Khalid, Madiha Bangash. “Ultra Sonographic Measurement of Placental Thickness During Pregnancy As a Parameter for Estimating Gestational Age of the Fetus”. Pakistan Journal of Medical & Health Sciences 16, no. 10 (December 17, 2022): 813. Accessed November 23, 2024. https://mail.pjmhsonline.com/index.php/pjmhs/article/view/3255.