DOI:
10.1055/s-00000095
Zeitschrift für Geburtshilfe und Neonatologie
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References
Ray JG, Singh G, Burrows RF.
Evidence for suboptimal use of periconceptional folic acid supplements globally.
BJOG 2004;
111: 399-408. doi:10.1111/j.1471-0528.2004.00115.x
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