Full text
PDFPage 278
. 1843 Jul 1;6(144):278. doi: 10.1136/bmj.s1-6.144.278
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.