1. Department of Obstetrics and Gynecology, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3 (House C), 24105 Kiel, Germany
2. University Fertility Center, Ambulanzzentrum of University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3 (House C), 24105 Kiel, Germany
3. School of Public Health, Iran University of Medical Sciences (IUMS), Tehran 14535, Iran
4. Private Gynecologic Practice, Chrisostomou Smirnis 11Β, 54622 Thessaloniki, Greece