University of Exeter, University of Exeter, University of Yaounde I - Yaounde Central Hospital, Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM), Uganda Research Unit, University of the Witwatersrand, University of the Witwatersrand, Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine (MRC/UVRI & LSHTM), Uganda Research Unit, Makerere University, Saint Francis Hospitals, Sultan Qaboos University, Muhimbili National Hospital, Muhimbili National Hospital, Tanzania NCDs Alliance, University of Yaoundé I, University of KwaZulu Natal, University of KwaZulu Natal, University of Pretoria, Life Groenkloof Hospital, University of Yaounde I - Yaounde Central Hospital, University of Exeter - Institute of Clinical and Biological Science, University of Cincinnati - Department of Pediatrics, University of Washington - Department of Pediatrics, New York University (NYU) - Division of Health Services Research, University of Exeter - Institute of Biomedical and Clinical Science, University of Exeter - Institute of Biomedical and Clinical Science, University of Colorado at Denver - Department of Epidemiology, University of Exeter - Institute of Biomedical and Clinical Science, University of Exeter - Institute of Biomedical and Clinical Science, National Health Laboratory Services (NHLS) - Department of Chemical Pathology, MRC/UVRI & LSHTM Uganda Research Unit, University of Yaounde I - Department of Internal Medicine and Specialities and University of Exeter - Institute of Clinical and Biological Science

University of Exeter - Institute of Biomedical and Clinical Science, University of Bristol - Department of Diabetes and Metabolism, University of Bristol - Department of Diabetes and Metabolism, University of Exeter - Institute of Biomedical and Clinical Science, University of Exeter - Institute of Biomedical and Clinical Science, University of Geneva, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter - Institute of Biomedical and Clinical Science, University of Exeter - Institute of Biomedical and Clinical Science, University of Washington, Indiana University - Center for Diabetes and Metabolic Diseases, University of Exeter - Institute of Clinical and Biological Science and University of Exeter - Institute of Biomedical and Clinical Science

Imperial College London - Department of Metabolism, Digestion and Reproduction, Imperial College London - Department of Metabolism, Digestion and Reproduction, Imperial College London - Department of Metabolism, Digestion and Reproduction, Imperial College London - Department of Metabolism, Digestion and Reproduction, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter - IBD Pharmacogenetics Group, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter - Institute of Biomedical and Clinical Science, Newcastle University, Government of the United Kingdom - Department of Gastroenterology, Barts Health NHS Trust - Department of Gastroenterology, NHS Lothian - Department of Gastroenterology, Imperial College London - Department of Immunology and Inflammation, St Marks Hospital and Academic Institute - Department of Gastroenterology, Imperial College London, Imperial College London - Department of Infectious Disease, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, University of Exeter - Exeter Inflammatory Bowel Disease and Pharmacogenetics Research Group, Royal Devon and Exeter NHS Foundation Trust - Department of Gastroenterology and Imperial College London - Department of Metabolism, Digestion and Reproduction