Figure 6.
The co-authorship of authors and institutions. (A) The co-authorship network clusters of authors. (B) The co-authorship network timeline of authors. (C) The network of institutions.
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.