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.
Data are presented with the mean ± standard deviation (n=8). *p < 0.05, compared with the control group; **p < 0.01, compared with the control group.
