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.
Error bars indicate standard deviation from six independent experiments. The p-value is less than 0,0001, this difference is considered to be extremely statistically significant.
