University of Greenwich, University of Liverpool, University of Cambridge, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia at London School of Hygiene and Tropical Medicine, Ulster University, University of East London, University of Cambridge, King’s College London - Department of Women and Children’s Health, University College London and University of Cambridge