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.
Color code indicates (A) the gross signal intensities found (compare to Fig. 4A, 100%–40% (red) and 40%–30% (yellow)) and (B) the net signal intensities found (compare to Fig. 4B, 100%–70% (red), 70%–40% (yellow) and 40%–20% (light blue)).
