Figure 2.
Group median tissue concentrations for sighted control (light gray bars) and early blind subjects (dark gray bars). Error bars represent the 25–75% interquartile range.
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.