1. Department of Obstetrics and Gynecology, Lincoln Hospital, Bronx, NY, USA;
2. Department of Obstetrics and Gynecology, Division of Immunology and Infectious Diseases, Weill Cornell Medicine, New York, NY, USA;
3. Department of Obstetrics and Gynecology, University of Florence, Florence, Italy;
4. Department of Obstetrics and Gynecology, BronxCare Hospital, Bronx, NY, USA