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.
A: English author's partnership network; B: Chinese author's partnership network; C: TCM author's partnership network (The font size of each author's name represents the publication counts of each author. Different colors inside the circle represent different time intervals. The thickness of the straight connecting line represents the collaborative intensity between authors).
