1.37. Analysis.
Comparison 1 Supplementation with any folate versus no intervention, placebo or other micronutrients without folate (five trials), Outcome 37 Other congenital anomalies (by history of an affected pregnancy ‐recurrence).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.