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.
Herfarth C, Stern J.Herfarth C, et al. Among authors: stern j.Dtsch Med Wochenschr. 1988 Mar 31;113(13):519-23. doi: 10.1055/s-2008-1067676.Dtsch Med Wochenschr. 1988.PMID: 3280296Review.German.No abstract available.