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.
The figure displays the top 25 keywords with the strongest citation bursts, indicating periods when these keywords experienced a significant increase in attention. The red bars represent the duration of the burst, showing when each keyword gained prominence, while the blue segments indicate periods of lower citation activity.
