Shobeiri, Fatemeh, Ensiyeh Jenabi, Manoochehr Karami, and Simin Karimi. “Determinants of Placenta Previa: A Case-Control Study”. Biomedical Research and Therapy 4, no. 06 (June 28, 2017): 1411-1419. Accessed November 23, 2024. http://home.biomedpress.org/index.php/BMRAT/article/view/182.