1. Royal Manchester Children’s Hospital, Manchester University Hospitals Trust , Manchester, UK
2. Centre for Epidemiology Versus Arthritis, Centre for Musculoskeletal Research, Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre , Manchester, UK
3. National Institute for Health Research Biomedical Research Centre, Manchester University Hospital NHS Trust , Manchester, UK