Sadik, Bassam M., and Salma A. AL-Taha. 2006. “The Significance Of Maternal Total Serum Homocysteine Level In Iraqi Mothers Who Had Previous Babies With Neural Tube Defects”. Journal of the Faculty of Medicine Baghdad 48 (3): 323-25. https://doi.org/10.32007/jfacmedbagdad.4831511.