1. Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, University of California at Irvine Medical Center, Orange, CA, USA,
2. Department of Obstetrics and Gynecology, Baylor College of Medicine & Texas Children’s Hospital, Houston, TX, USA,
3. School of Medicine, University of Connecticut, Farmington, CT, USA,
4. School of Medicine & Biomedical Sciences, University of Buffalo, Buffalo, NY, USA,
5. Stony Brook School of Medicine, Stony Brook, NY, USA, and
6. Austin Maternal-Fetal Medicine, St. David’s Women’s Center of Texas, Austin, TX, USA