1. Department of Rheumatology and Immunology University Hospital of Bern Bern Switzerland
2. Department of BioMedical Research University of Bern Bern Switzerland
3. Graduate School of Cellular and Biomedical Sciences University of Bern Bern Switzerland
4. Department of Dermatology University of Zurich Zurich Switzerland
5. Department of Dermatology University Hospital Zurich Zurich Switzerland
6. Nuffield Department of Medicine, Centre for Cellular and Molecular Physiology (CCMP), The Jenner Institute University of Oxford Oxford UK