The content is available as a PDF (435.8 KB).
. 2002 Jan 15;22(2):RC198. doi: 10.1523/JNEUROSCI.22-02-j0002.2002
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.