1 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA, USA. Electronic address: vincenzo.berghella@jefferson.edu.
2 Dan Women and Babies Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada.
3 Department of Obstetrics & Gynecology, University of North Carolina, USA.
4 The Cairns Institute, James Cook University, Cairns, Queensland, Australia.
5 Department of Public Health & Epidemiology, RCSI, Dublin, Ireland.
6 International Federation of Gynecology & Obstetrics, London, UK.
7 Birmingham Women's and Children's Hospital, UK.
8 Research Group Reproductive Medicine, Department of Development and Regeneration, Organ Systems, Group Biomedical Sciences, KU Leuven (University of Leuven), Belgium; Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA; Global Medical Affairs Fertility, Research and Development, Merck Healthcare KGaA, Darmstadt, Germany.
9 Washington University in St Louis, MO, USA.
10 Oxford Maternal and Perinatal Health Institute, Oxford, UK.
11 Division of Maternal-Fetal Medicine, The University of Texas Medical Branch, Galveston, USA.
12 Department of Obstetrics and Gynaecology, The Rotunda Hospital, Dublin, Ireland.