1. Division of Maternal Fetal Medicine, Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center Harvard Medical School Boston MA USA
2. Centre for Fetal Care, Queen Charlotte's and Chelsea Hospital Imperial College Healthcare NHS Trust London UK
3. Department of Metabolism, Digestion and Reproduction Imperial College London London UK
4. EGA Institute for Women's Health, Faculty of Population Health Sciences University College London London UK