1. Institute for Health Services Research in Dermatology and Nursing (IVDP) University Medical Center Hamburg‐Eppendorf Hamburg Germany
2. Department of Dermatology Instituto de Investigación Sanitaria la Princesa (IIS‐IP)Hospital Universitario la Princesa Madrid Spain
3. Department of Dermatology Psoriasis‐Center University Medical Center Schleswig‐Holstein Kiel Germany
4. Department of Dermatology Paul Sabatier University Toulouse France
5. Novartis Pharma AG Basel Switzerland
6. Novartis Farma S.p.A Origgio Italy