Received: 10 July 2019
Accepted: 18 December 2019
First Online: 26 December 2019
Ethics approval and consent to participate
: This study was performed on 25 men attending Clermont-Ferrand (France) University Hospital’s Center for Reproductive Medicine for fertility issues. Written informed consent was obtained from each man before the inclusion of any sperm sample in the GERMETHEQUE biobank, authorized by the ethical committee (CPP Sud-Est VI, DC2008–558). The study was registered at ExternalRef removed (NCT 02252510). This work complies with the Code of Ethics of the World Medical Association.
: Not applicable.
: The authors declare that they have no competing interests.