1. Department of Dermatology, Lausanne University Hospital (CHUV) , and Faculty of Biology and Medicine, University of Lausanne, Lausanne , Switzerland
2. Departments of Dermatology
3. Immunology, University Hospital Zürich , Switzerland
4. Institute of Statistics and Econometrics, Faculty of Economics and Business Administration, Sofia University ‘St Kliment Ohridski’ , Sofia , Bulgaria
5. Division of Dermatology, McGill University, Jewish General Hospital, and Lady Davis Institute for Medical Research , Montreal , Canada
6. Hautärzte-Zentrum am Zürisse , Zürich , Switzerland
7. Department of Dermatology, University Hospital Linz , Linz , Austria
8. Department of Immunology, Medical University of Warsaw , Warsaw , Poland