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.
Zitzmann M, Junker R, Kamischke A, Nieschlag E.Zitzmann M, et al. Among authors: kamischke a.J Androl. 2002 Jul-Aug;23(4):503-11.J Androl. 2002.PMID: 12065457Free article.Clinical Trial.
Nieschlag E, Zitzmann M, Kamischke A.Nieschlag E, et al. Among authors: kamischke a.Steroids. 2003 Nov;68(10-13):965-72. doi: 10.1016/s0039-128x(03)00135-1.Steroids. 2003.PMID: 14667989Review.
Zitzmann M, Erren M, Kamischke A, Simoni M, Nieschlag E.Zitzmann M, et al. Among authors: kamischke a.J Clin Endocrinol Metab. 2005 Dec;90(12):6603-8. doi: 10.1210/jc.2005-0847. Epub 2005 Oct 4.J Clin Endocrinol Metab. 2005.PMID: 16204370
Zitzmann M, Nordhoff V, von Schönfeld V, Nordsiek-Mengede A, Kliesch S, Schüring AN, Luetjens CM, Kamischke A, Cooper T, Simoni M, Nieschlag E.Zitzmann M, et al. Among authors: kamischke a.Fertil Steril. 2006 Aug;86(2):339-47. doi: 10.1016/j.fertnstert.2005.12.058. Epub 2006 Jun 6.Fertil Steril. 2006.PMID: 16753155Free article.
Leifke E, Simoni M, Kamischke A, Gromoll J, Bergmann M, Nieschlag E.Leifke E, et al. Among authors: kamischke a.Int J Androl. 1997 Feb;20(1):29-36. doi: 10.1046/j.1365-2605.1997.00102.x.Int J Androl. 1997.PMID: 9202988
Kamischke A, Behre HM, Bergmann M, Simoni M, Schäfer T, Nieschlag E.Kamischke A, et al.Hum Reprod. 1998 Mar;13(3):596-603. doi: 10.1093/humrep/13.3.596.Hum Reprod. 1998.PMID: 9572419Clinical Trial.