E, Joseph, A L Flores, C Vellozzi, and D Valencia. “Global Burden of Neural Tube Defects, Risk Factors, and Prevention”. Indian Journal of Community Health 26, no. Supp 1 (December 31, 2014): 3–5. Accessed May 3, 2024. https://iapsmupuk.org/journal/index.php/IJCH/article/view/460.