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.
The diagram shows the flow of participants from enrollment in the randomized clinical trial to the dental examination at age 6 years. Exclusion criteria were gestational age greater than week 26; any endocrine, cardiovascular, or nephrological disorders or vitamin D intake greater than 600 IU/d.
