Full text
PDFPage 120
letter . 1997 Feb;90(2):120. doi: 10.1177/014107689709000229
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.
