Affiliations

• ¹ Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK.
• ² Middle East Technical University, Faculty of Arts and Sciences, Department of Statistics, Ankara, Turkey; Koc University, School of Medicine, Department of Obstetrics and Gynaecology, Istanbul, Turkey.
• ³ Department of Twin Research & Genetic Epidemiology, School of Life Course Sciences, King's College London, London, UK.
• ⁴ The Royal College of Obstetricians and Gynaecologists, London, UK; University College London Hospitals NHS Foundation Trust, London, UK.
• ⁵ The Royal College of Obstetricians and Gynaecologists, London, UK; Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, Norfolk, UK.
• ⁶ Paediatric Infectious Diseases Research Group and Vaccine Institute, Institute of Infection and Immunity, St George's University of London, London SW17 0QT, UK.
• ⁷ Fetal Medicine Unit, St George's Hospital, St George's University of London, London SW17 0QT, UK; Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London SW17 0QT, UK. Electronic address: akhalil@sgul.ac.uk.