Affiliations

• ¹ Institute of Women and Children's Health, King's College London, London, United Kingdom.
• ² Department of Hygiene, Epidemiology and Medical Statistics, National and Kapodistrian University of Athens, Athens, Greece.
• ³ North Middlesex University Hospital NHS Trust, London, United Kingdom.
• ⁴ Monash University, Melbourne, VIC, Australia.
• ⁵ Department of Women and Children's Health, King's College London, London, United Kingdom.
• ⁶ College of Human Medicine, Michigan State University, East Lansing, MI, United States.
• ⁷ MRC Center for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom.
• ⁸ Botswana Harvard AIDS Institute Partnership, Gaborone, Botswana.
• ⁹ Department of Obstetrics and Gynaecology, University of British Columbia, Vancouver, BC, Canada.
• ¹⁰ Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, United Kingdom.