1. EGA Institute for Women's Health, Faculty of Population Health Sciences University College London (UCL) London UK
2. Queen Charlotte's and Chelsea Hospital Imperial Healthcare NHS Trust London UK
3. Fetal Medicine Unit, Department of Obstetrics and Gynecology St George's Hospital London UK
4. Institute of Reproductive and Developmental Biology Imperial College London London UK
5. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynaecology Beth Israel Deaconess Medical School, Harvard Medical School Boston Massachusetts USA