1. Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development National Institutes of Health, Department of Health and Human Services Bethesda, MD and Detroit MI USA
2. Department of Obstetrics and Gynecology University of Michigan Ann Arbor MI USA
3. Department of Epidemiology and Biostatistics Michigan State University East Lansing MI USA
4. Center for Molecular Medicine and Genetics Wayne State University Detroit MI USA
5. Department of Obstetrics and Gynecology Wayne State University School of Medicine Detroit MI USA
6. Department of Obstetrics and Gynecology, Mansoura University Hospitals Mansoura University Mansoura Egypt
7. Center of Fetal Medicine and Pregnancy, Department of Obstetrics Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
8. Department of Clinical Biochemistry Herlev and Gentofte Hospital Herlev Denmark
9. Department of Obstetrics and Gynecology São Paulo University Medical School São Paulo Brazil
10. Department of Obstetrics and Gynecology Zeynep Kamil Women and Children Diseases Education and Research Hospital Uskudar Istanbul Turkey
11. Maternal‐Fetal Medicine Unit, Instituto Valenciano de Infertilidad University of Valencia Valencia Spain
12. Department of Pediatrics, Obstetrics and Gynecology University of Valencia Valencia Spain
13. Departamento de Obstetrícia e Ginecologia, Hospital do Servidor Publico Estadual ‘Francisco Morato de Oliveira’ and School of Medicine University of São Paulo São Paulo Brazil
14. University of Copenhagen Faculty of Health Sciences Copenhagen Denmark
15. Department of Obstetrics University Hospital La Fe Valencia Spain
16. Harris Birthright Research Centre for Fetal Medicine King's College Hospital London UK