1.30. Analysis.
Comparison 1 A dose of vitamin D 601 IU/d or higher vs 600 IU/d or lower alone or with other nutrients, Outcome 30 Low birthweight (by registered or not registered).
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.