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.
Behrens BA, Bouguecha A, Nolte I, Meyer-Lindenberg A, Stukenborg-Colsman C, Pressel T.Behrens BA, et al. Among authors: pressel t.Stud Health Technol Inform. 2008;133:33-44.Stud Health Technol Inform. 2008.PMID: 18376011