Figure 1.
Plasma selenium concentrations in participants of the Mt. Vernon Study. A. Frequency distribution of plasma selenium. B. Racial differences in plasma selenium by quartile in men and women.
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.