Franke, Werner W. http://orcid.org/0000-0002-4873-8448
Domke, Lisa M.
Dörflinger, Yvette
Zimbelmann, Ralf
Article History
Received: 24 June 2019
Accepted: 22 September 2019
First Online: 12 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national and institutional guidelines for the care and use of animals were followed in the procurement of testicular tissue samples from rats and mice (source: Central Animal Laboratory of the German Cancer Research Center, Heidelberg, Germany), from bulls (source: local slaughterhouse in Mannheim, Germany) and from boars (source: Institute of Farm Animal Genetics, Friedrich-Loeffler-Institute, Mariensee, Germany). Cryopreserved and aldehyde-fixed human testis samples were obtained from surgical material taken, examined for diagnostic pathology and processed in compliance with the regulations of the Ethics Committee of the University of Heidelberg, Germany, in accordance with the ethical standards of the Federal Research Committee of Germany and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.