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.
Liebetrau M, Staufer B, Auerswald EA, Gabrijelcic-Geiger D, Fritz H, Zimmermann C, Pfefferkorn T, Hamann GF.Liebetrau M, et al. Among authors: hamann gf.Neuroreport. 1999 Feb 25;10(3):529-34. doi: 10.1097/00001756-199902250-00016.Neuroreport. 1999.PMID: 10208584