Received: 29 April 2020
Accepted: 13 July 2020
First Online: 13 August 2020
Ethics approval and consent to participate
: This study was carried out at the Isfahan Fertility and Infertility Center and was approved by the Royan Institute’s ethics committee (IR.ACECR.ROYAN.REC.1398.258). All male patients who participated in the study signed a consent form.
: All authors contributed to the study. They have all seen the final version and consent to its submission.
: Collectively, the authors do not declare any competing interests. For the sake of transparency, PG and JRD are respectively CEO and scientific advisor to a US-based biotechnology company (Celloxess, Ewing, NJ, USA) that contributes to preventive medicine with a focus on the production of antioxidant dietary supplements. Celloxess did not contribute in any way to this study.