TNTDPTexas Neural Tube Defect Project
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The primary objective of TNTDP is preventing recurrence of NTDs by providing folic acid to women who have had an NTD-affected pregnancy.
Each woman identified through the TNTDP surveillance protocol was at risk for recurrence and could not have been enrolled in the folic acid intervention program without being identified through surveillance.
surveillance systems [4,5], since its inception the TNTDP has included cases at [less than]20 weeks' gestational age.