1.1. Analysis.
Comparison 1 Supplementation with vitamin D alone versus placebo or no intervention (no vitamins or minerals), Outcome 1 Pre‐eclampsia (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.