1 Dermatology Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.
2 Juvenile Myositis Pathogenesis and Therapeutics Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.
3 Translational Immunology Section, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.
4 National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
5 Department of Immunology, Royal Free London Hospitals NHS Foundation Trust, London, UK. arian.laurence@nhs.net.
6 University College London Hospitals NHS Foundation Trust, London, UK. arian.laurence@nhs.net.
7 Molecular Immunology and Inflammation Branch, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD, USA.