1. Department of Obstetrics and Gynecology, ART Unit, University of Thessaly, School of Health Sciences, Faculty of Medicine, Larisa, Greece
2. Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Unit of Human Reproduction, 1st Department of Obstetrics and Gynecology, Aristotle University Medical School, Papageorgiou General Hospital, Thessaloniki, Greece
4. Department of Physiology, Kapodistrian University of Athens, School of Health Sciences, Faculty of Medicine, Athens, Greece
5. Vrije Universiteit Brussel, Brussels, Belgium
6. Universitair Ziekenhuis Brussel, Brussels, Belgium
7. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
8. Department of Anatomy, University of Thessaly, School of Health Sciences, Faculty of Medicine, Larisa, Greece