Mohammadifard, Mahyar, Nasrin Khorashadizadeh, and Maryam Zarouni. “Detection Rate of Fetal CNS Anomalies by First and Second Trimester Ultrasound Screening”. Journal of Contemporary Medical Sciences 7, no. 3 (June 26, 2021): 164–166. Accessed December 4, 2024. https://jocms.org/index.php/jcms/article/view/982.