1. Department of Physiology, Medical School, National and Kapodistrian University of Athens, 75, Mikras Asias, 11527, Athens, Greece
2. Assisted Conception Unit, 2nd Department of Obstetrics and Gynecology, Aretaieion Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
3. Centre for Human Reproduction, Genesis Athens Clinic, Athens, Greece
4. Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece