1. Department of Health Sciences, Medical School, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
2. Department of Obstetrics and Gynecology, General Hospital of Trikala, 42100 Trikala, Greece
3. Department of Obstetrics and Gynecology, EmbryoClinic IVF, 55133 Thessaloniki, Greece
4. Department of Medicine, University of Thessaly, School of Health Sciences, 41334 Larissa, Greece