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.
Lin JS, Whitlock E, O'Connor E, Bauer V.Lin JS, et al.Ann Intern Med. 2008 Oct 7;149(7):497-508, W96-9. doi: 10.7326/0003-4819-149-7-200810070-00011.Ann Intern Med. 2008.PMID: 18838730Free article.Review.
Lin JS, O'Connor E, Evans CV, Senger CA, Rowland MG, Groom HC.Lin JS, et al.Ann Intern Med. 2014 Oct 21;161(8):568-78. doi: 10.7326/M14-0130.Ann Intern Med. 2014.PMID: 25155549Free article.Review.
O'Connor E, Rossom RC, Henninger M, Groom HC, Burda BU.O'Connor E, et al.JAMA. 2016 Jan 26;315(4):388-406. doi: 10.1001/jama.2015.18948.JAMA. 2016.PMID: 26813212Review.
Lin JS, Piper MA, Perdue LA, Rutter CM, Webber EM, O'Connor E, Smith N, Whitlock EP.Lin JS, et al.JAMA. 2016 Jun 21;315(23):2576-94. doi: 10.1001/jama.2016.3332.JAMA. 2016.PMID: 27305422Review.