2 St John's Institute of Dermatology, Guy's and St Thomas' NHS Foundation Trust, London, SE1 9RT, UK.
3 Clinical Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, SO16 6YD, UK.
4 Barts Health NHS Trust and Queen Mary University of London Medical School, London, E1 1BB, UK.
5 Patient representative.
6 Royal Free London NHS Foundation Trust, Pond St, London, NW3 2QG, UK.
7 University of Manchester & Salford Royal Hospital, Salford, M6 8HD, UK.
8 MRC Human Immunology Unit, The MRC Weatherall Institute of Molecular Medicine, University of Oxford, NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, OX3 9DS, UK.
9 University of Lincoln, Lincoln, LN6 7TS, UK.
10 British Association of Dermatologists, Willan House, 4 Fitzroy Square, London, W1T 5HQ, UK.