1. Department of Dermatology, University Hospital of Zürich, Zürich, Switzerland
2. Faculty of Science, University of Zürich, Zürich, Switzerland
3. Faculty of Medicine, University of Zürich, Zürich, Switzerland
4. Department of Dermatology and Allergy, University Hospital, LMU Munich, Munich, Germany
5. Lausanne University Hospital (CHUV), Lausanne, Switzerland
6. Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland