1 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA. Electronic address: moti.gulersen@jefferson.edu.
2 Biostatistics and Data Management, New York University Rory Meyers College of Nursing, New York, NY.
3 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA.
4 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Oregon Health and Science University, Portland, OR.
5 Formely Department of Obstetrics, Gynecology, and Reproductive Medicine, Northwest Clinics Alkmaar, Alkmaar, Netherlands.
6 Department of Obstetrics and Gynecology, Dr. Horacio E. Oduber Hospital, Oranjestad, Aruba.
7 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Lenox Hill Hospital - Zucker School of Medicine at Hofstra/Northwell, New York, NY.