Figure 1.
Scatter plots depicting bivariate associations between free 25(OH) D and total 25(OH)D. rho=0.912, p<0.0001.
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.