1. The Dermatology Centre Salford Royal NHS Foundation Trust, Salford, Greater Manchester, M6 8HD UK; Centre for Dermatology Research University of Manchester MAHSC and NIHR Manchester Biomedical Research Centre Manchester M13 9PL UK
2. Department of Dermatology Norfolk & Norwich University Hospitals NHS Foundation Trust Norwich NR4 7UY UK
3. Alan Lyell Centre for Dermatology Queen Elizabeth University Hospital Glasgow G51 4TF UK
4. Pfizer Ltd Walton Oaks, Walton on the Hill Tadworth Surrey KT20 7NS UK
5. Department of Primary Care Health Sciences University of Oxford, OX2 6GG, UK; Oxford‐Royal College of General Practitioners, Research and Surveillance Centre London NW1 2FB UK
6. St John’s Institute of Dermatology Guy’s and St Thomas’ Hospitals & King’s College London London SE1 9RT UK
7. Department of Dermatology Royal Hallamshire Hospital Sheffield S10 2JF UK