Trends in neural tube defect prevalence, folic acid fortification, and vitamin supplement use
2002 ◽
Vol 26
(4)
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pp. 277-285
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2018 ◽
Vol 107
(6)
◽
pp. 1027-1034
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2003 ◽
Vol 123A
(2)
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pp. 123-128
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2016 ◽
Vol 70
(Suppl 1)
◽
pp. A52.1-A52
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2013 ◽
Vol 7
(4)
◽
pp. 315
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