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. 2020 Nov 16;10(11):e040416. doi: 10.1136/bmjopen-2020-040416

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© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Folic acid trial schedule. *This timepoint will be completed only for women enrolled <14 weeks gestation. SMS, short message service; UMFA, unmetabolised folic acid.