1.9. Analysis.
Comparison 1 Supplementation with any folate versus no intervention, placebo or other micronutrients without folate (five trials), Outcome 9 Cleft lip (All).
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.