| Institution: | 1. Division of Medical Screening and Special Testing, Department of Pathology and Laboratory Medicine, Women and Infants Hospital, Alpert Medical School of Brown University, Providence, RI, USA;2. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Women and Infants Hospital, Alpert Medical School of Brown University, Providence, RI, USA;3. Division of Obstetric Medicine, Department of Medicine, Women and Infants Hospital, Alpert Medical School of Brown University, Providence, RI, USA |
