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.
Values represent means of at least three independent experiments ± SEM. *p<0.05, **p<0.01, ***p<0.001 as indicated.
