In Reply:
We thank Dr. Haddow for his comments on the guideline and acknowledge that the Medical Research Council study did indeed lay the groundwork for folate supplementation and fortification.
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Toriello, H. Reply. Genet Med 13, 849 (2011). https://doi.org/10.1097/GIM.0b013e31822a5e48
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DOI: https://doi.org/10.1097/GIM.0b013e31822a5e48
