1. Medical Research Council Centre for Reproductive Health, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK
2. Centre for Reproductive Health, College of Medicine, University of Malawi, Blantyre, Malawi
3. Department of Health Systems & Policy, School of Public Health and Family Medicine, College of Medicine, University of Malawi, Blantyre, Malawi
4. Department of Obstetrics & Gynaecology, College of Medicine, University of Malawi, Blantyre, Malawi
5. Department of Paediatrics, College of Medicine, University of Malawi, Blantyre, Malawi
6. Malawi-Liverpool Wellcome Trust Research Program, Blantyre, Malawi
7. Malawi Epidemiology and Intervention Research Unit, Lilongwe, Malawi
8. Institute of Infection & Global Health, University of Liverpool, Liverpool, UK
9. Faculty of Health Sciences, University of Bristol, Bristol, UK
10. Centre for Cardiovascular Science, University of Edinburgh, Queen’s Medical Research Institute, Edinburgh, UK