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.
Keywords relevant to this analysis were mapped, with the size of individual points corresponding to frequency values. Overall, ;these keywords clustered into five categories: Neurological Research (red; upper left), Surgical Techniques (green; upper right), Technological Products (yellow; lower right), rehabilitative medicine (blue, lower left), and clinical therapy (purple, lower left)
