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.
Kim JS, Reading SA, Brashers-Krug T, Calhoun VD, Ross CA, Pearlson GD.Kim JS, et al. Among authors: calhoun vd.Psychiatry Res. 2004 May 30;131(1):23-30. doi: 10.1016/j.pscychresns.2004.03.002.Psychiatry Res. 2004.PMID: 15246452