Full text
PDFPage 824
. 1975 Aug;38(8):824. doi: 10.1136/jnnp.38.8.824
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.