1. Infection, Inflammation and Rheumatology Section, UCL Great Ormond Street Institute of Child Health, London, UK
2. Great Ormond Street Hospital NHS Foundation Trust, London, UK
3. Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust, Liverpool, UK
4. Infection, Immunity, Inflammation, Molecular and Cellular Immunology Section, UCL Great Ormond Street Institute of Child Health, London, UK
5. Neuroradiology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
6. Immunology, Great Ormond Street Hospital NHS Foundation Trust, London, UK
7. Arthritis Research UK Centre for Adolescent Rheumatology, UCL, UCLH and GOSH, London, UK