An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Fiellin DA, Reid MC, O'Connor PG.Fiellin DA, et al.Ann Intern Med. 2000 Nov 21;133(10):815-27. doi: 10.7326/0003-4819-133-10-200011210-00015.Ann Intern Med. 2000.PMID: 11085845Review.
Fiellin DA, O'Connor PG.Fiellin DA, et al.Ann Intern Med. 2002 Oct 15;137(8):688-92. doi: 10.7326/0003-4819-137-8-200210150-00014.Ann Intern Med. 2002.PMID: 12379070