1. Department of Dermatology, University of Lübeck, Lübeck, Germany
2. Department of Dermatology and Allergology, Ruhr‐University Bochum, Bochum, Germany
3. Department of Dermatology, University of Kiel, Kiel, Germany
4. School of Translational Medicine, University of Manchester, Manchester, U.K.
5. Division of Dermatology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand