1. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Hartford Hospital, Hartford, CT, USA
2. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, University of Connecticut School of Medicine, Farmington, CT, USA
3. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Saint Francis Hospital and Medical Center, Hartford, CT, USA