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.
Franke A, Zeuzem S.Franke A, et al. Among authors: zeuzem s.Z Gastroenterol. 1998 Jun;36(6):539-41.Z Gastroenterol. 1998.PMID: 9675840German.No abstract available.