1. Division of Human Reproduction (V.D., G.A.P., D.M., E.A., P.D., D.L.), IVF Unit, First Department of Obstetrics and Gynaecology, Alexandra Hospital, Athens University Medical School, 11528 Athens, Greece
2. In Vitro Fertilization Unit (A.M.), Department of Obstetrics and Gynaecology, Medical School, University of Crete, 71110 Heraklion, Greece
3. First Department of Pediatrics (G.P.C.), Athens University Medical School, Aghia Sophia Children’s Hospital, 11527 Goudi, Athens, Greece