More on folic acid and neural tube defects.
Keyword(s):
1998 ◽
Vol 91
(6)
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pp. 1027-1034
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1996 ◽
Vol 16
(18)
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pp. 1
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1995 ◽
Vol 20
(1)
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pp. 4-16
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2007 ◽
Vol 86
(6)
◽
pp. 1773-1779
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