1. NYU School of Medicine; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine; New York NY USA
2. Department of Obstetrics and Gynecology; Arnas Civico Hospital; Palermo Italy
3. Winthrop University Hospital; Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine and Surgery; Mineola NY USA
4. Maternal Fetal Care PC; Stamford CT USA
5. Hackensack University Medical Center; Department of Obstetrics and Gynecology; Hackensack NJ USA
6. Albert Einstein College of Medicine; Department of Obstetrics and Gynecology and Women's Health; Bronx NY USA