1. Disease Control & Elimination Theme Medical Research Council Unit The Gambia at London School of Hygiene & Tropical Medicine Banjul The Gambia
2. Team “Viruses, Hepatology, Cancer”, Institut Mondor de Recherche Biomédicale, INSERM U955 Université Paris‐Est Créteil France
3. Department of Metabolism, Digestion and Reproduction, Division of Digestive Diseases, St Mary's Hospital Imperial College London London UK