Polymorphisms within the vitamin B12 dependent methylmalonyl-coA mutase are not risk factors for neural tube defects.
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Parle-McDermott A, et al. Among authors: molloy am.
Mol Genet Metab. 2003 Dec;80(4):463-8. doi: 10.1016/j.ymgme.2003.09.009.
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PMID: 14654360