1. Genesis Athens Clinic Center for Human Reproduction Athens Greece
2. Department of Physiology, Medical School National and Kapodistrian University of Athens Athens Greece
3. Second Department of Obstetrics and Gynecology Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens Athens Greece
4. Third Department of Obstetrics and Gynecology Attikon Hospital, Medical School, National and Kapodistrian University of Athens Athens Greece