1. Department of Obstetrics and Gynecology, Academic Medical Center, Amsterdam UMC, University of Amsterdam, and Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen The Netherlands
2. Center for Prenatal Diagnosis and Human Genetics Berlin Germany
3. Western Sydney University Sydney Australia
4. Department of Obstetrics and Gynecology University of Tuebingen Tuebingen Germany
5. Nuffield Department of Women's and Reproductive Health University of Oxford Oxford UK
6. Fetal Medicine Unit St George's University of London London UK
7. Department of Obstetrics and Gynaecology Chinese University of Hong Kong Hong Kong SAR China
8. Department of Obstetrics and Fetal Medicine Paris Cité University, Assistance Publique‐Hopitaux de Paris, Hopital Necker–Enfants Malades Paris France
9. Fetal Medicine Research Institute, King's College Hospital London UK