1. Units of Obstetrics and Gynecology (S.P., A.F., G.C., G.B.L.S.) IRCCS—Arcispedale Santa Maria Nuova, 42123 Reggio Emilia, Italy
2. Department of Endocrinology (F.O.), University “Parthenope” of Naples, 80100 Naples, Italy
3. Department of Endocrinology (F.O.), University “Ruggi d'Aragona,” 84131 Salerne, Italy
4. Departments of Obstetrics and Gynecology (A.T.), 80131 Naples, Italy
5. Endocrinology (A.C.), University “Federico II” of Naples, 80131 Naples, Italy
6. University of Modena and Reggio Emilia (G.B.L.S.), 41100 Modena, Italy
7. Department of Obstetrics and Gynecology (F.Z.), University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy