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.
Schneider W, Wehmeier A.Schneider W, et al. Among authors: wehmeier a.Dtsch Med Wochenschr. 1989 Jun 16;114(24):951-4. doi: 10.1055/s-2008-1066699.Dtsch Med Wochenschr. 1989.PMID: 2731480German.