1. 3rd Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Attikon Hospital, Athens, Greece
2. Vascular Biology, Molecular and Clinical Sciences Research Institute, St George’s University of London, London, UK
3. Endocrinology Unit, 2nd Department of Obstetrics and Gynecology, National and Kapodistrian University of Athens Medical School, Aretaieio Hospital, Athens, Greece
4. Department of Obstetrics and Gynecology, Chania General Hospital “St. George”, Crete, Greece
5. Department of Obstetrics and Gynecology, Medical School, University of Ioannina, Ioannina, Greece
6. Department of Neonatology, National and Kapodistrian University of Athens Medical School, Aretaieio Hospital, Athens, Greece