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.
The error bars indicated standard deviation. Asterisks indicated that the expression level was significantly different from the value of the control (*P<0.05, **P<0.01).
