An official website of the United States government
Here's how you know
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.
Systematic review. Literature review and exclusions for the association between pregestational diabetes and congenital heart defects for systematic review and meta-analysis, publications through December 2012.