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.
Tamm E, Rittig M, Lütjen-Drecoll E.Tamm E, et al. Among authors: rittig m.Fortschr Ophthalmol. 1990;87(6):623-9.Fortschr Ophthalmol. 1990.PMID: 2086407German.
Rittig M, Lütjen-Drecoll E, Prehm P.Rittig M, et al.Exp Eye Res. 1992 Mar;54(3):455-60. doi: 10.1016/0014-4835(92)90057-y.Exp Eye Res. 1992.PMID: 1521573