1. Tulane University School of Medicine , New Orleans, LA , USA
2. Centre for Dermatology Research, NIHR Manchester Biomedical Research Centre, Manchester Academic Health Science Centre, University of Manchester , Manchester , UK
3. Department of Dermatology, King’s College Hospital NHS Foundation Trust, King’s College London , London , UK
4. St John’s Institute of Dermatology, Guy’s and St Thomas’ NHS Foundation Trust, King’s College London , London , UK