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.
Kohler B, Riemann JF.Kohler B, et al. Among authors: riemann jf.Dtsch Med Wochenschr. 1994 Jan 21;119(3):69-73. doi: 10.1055/s-2008-1058663.Dtsch Med Wochenschr. 1994.PMID: 8299512Review.German.No abstract available.
Kohler A, Maier M, Benz C, Martin WR, Farin G, Riemann JF.Kohler A, et al. Among authors: riemann jf.Endoscopy. 1998 May;30(4):351-5. doi: 10.1055/s-2007-1001281.Endoscopy. 1998.PMID: 9689507Clinical Trial.