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.
Ludwig M, Schroeder-Printzen I, Schiefer HG, Weidner W.Ludwig M, et al. Among authors: weidner w.Urology. 1999 Feb;53(2):340-5. doi: 10.1016/s0090-4295(98)00503-2.Urology. 1999.PMID: 9933051
Schroeder-Printzen I, Hauck EW, Weidner W.Schroeder-Printzen I, et al. Among authors: weidner w.Andrologia. 1999;31 Suppl 1:31-5. doi: 10.1111/j.1439-0272.1999.tb01448.x.Andrologia. 1999.PMID: 10643517Review.