Julia Burd, MD
Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, Philadelphia, PA
Johanna Quist-Nelson, MD 
Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, The University of North Carolina at Chapel Hill, 3009 Old Clinic Bldg. Campus Box 7570, Chapel Hill, NC 27599
Julie Gomez, MSc
Sidney Kimmel Medical College at Thomas Jefferson University Hospital, Philadelphia, PA
Bradley De Vries, PhD
Faculty of Medicine and Health, Sydney Institute for Women Children and their Families/Sydney Local Health District, School of Public Health, The University of Sydney, New South Wales, Australia
Hala Phipps, PhD
Faculty of Health, Sydney Institute for Women Children and their Families/Sydney Local Health District, School of Nursing and Midwifery, University of Technology, New South Wales, Australia
Caroline Verhaeghe, MD, MSc
Department of Obstetrics and Gynecology, Angers University Hospital, Angers Cedex, France
Vincenzo Berghella, MD
Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, Philadelphia, PA