A. Mitwally, Abo Bakr, Diaa Eldeen M. Abd El Aal, Nermeen Taher, and Ahmed M. Abbas. “Prevalence of Blighted Ovum in First Trimester of Pregnancy: A Hospital Based Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 8, no. 1 (December 26, 2018): 94–98. Accessed October 9, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/5854.