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.
Node size is proportional to mutation frequency, node color is proportional to node degree (red: higher degree values, green: lower degree values) and edge width is proportional to betweenness centrality.
