1. Infection, Immunity and Inflammation Research and Teaching Department, University College London Great Ormond Street Institute of Child Health, London, UK
2. Centre for Outcomes and Experience Research in Children’s Health, Illness and Disability (ORCHID), Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
3. NIHR Biomedical Research Centre at Great Ormond Street Hospital, London, UK
4. Centre for Adolescent Rheumatology Versus Arthritis at UCL UCLH and GOSH, London, UK
5. School of Health Sciences, University of Surrey, Guildford, UK