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.
Topic correlation map. Note: The thickness of the connecting lines represents the strength or closeness of the connections between the topics, while the size of the text corresponds to the percentage representation of each topic. Source: Created by the authors.
