1. UCL Institute for Global Health University College London London United Kingdom
2. College of Medicine University of Malawi Blantyre Malawi
3. MRC Centre of Epidemiology for Child Health UCL Institute of Child Health London United Kingdom
4. Department of Paediatrics & Child Health College of Medicine and Queen Elizabeth Central Hospital Blantyre Malawi
5. UCL Department of Epidemiology and Public Health Leonard Cheshire Disability and Inclusive Development Centre London United Kingdom