1. Second Department of Obstetrics and Gynecology (M.C.M., E.D., O.G., G.C.), Athens University Medical School, Aretaieion Hospital, Athens 11528, Greece;
2. Second Department of Hormonal Laboratory (D.R.), Athens University Medical School, Aretaieion Hospital, Athens 11528, Greece;
3. Second Department of Endocrine Unit (G.V., G.M.), Athens University Medical School, Aretaieion Hospital, Athens 11528, Greece;
4. First Department of Pediatrics (G.P.C.), Athens University Medical School, Aghia Sophia Children's Hospital, Athens 10674, Greece