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.
In the Funding section, the grant number from the funder National Natural Science Foundation of China is incorrect. The correct grant number is: 81170679.
