1. Department of Obstetrics Maternal Medicine Service St George’s Hospital London UK
2. UCL EGA Institute for Women’s Health London UK
3. Department of Neurology Hammersmith Hospital Imperial College Healthcare NHS Trust London UK
4. Directorate of Maternity Queen Charlotte’s and Chelsea Hospital Imperial College Healthcare NHS Trust London UK
5. Department of Obstetrics and Gynaecology Royal London Hospital Whitechapel, London UK
6. Department of Obstetrics and Gynaecology Queen’s Hospital Barking Havering and Redbridge University Hospitals NHS Trust London UK
7. Department of Neurology Queen’s Hospital Barking Havering and Redbridge University Hospitals NHS Trust London UK
8. Academic Department of Obstetrics and Gynaecology Chelsea and Westminster Hospital London UK