1. University Medical Center Hamburg-Eppendorf; Institute for Health Services Research in Dermatology and Nursing; Hamburg Germany
2. Department of Dermatology; University of Rome ‘Tor Vergata’; Rome Italy
3. Department of Dermatology; Hospital Universitario de la Princesa; Madrid Spain
4. Servicio de Dermatología; Hospital Universitari Germans Trias i Pujol; Universitat Autònoma de Barcelona; Barcelona Spain
5. Clinica Dermatologica; Università di Verona; Verona Italy
6. Bispebjerg Hospital; University of Copenhagen; Copenhagen NV Denmark
7. Department of Dermatology; Aarhus University Hospital; Aarhus C Denmark
8. Baylor Research Institute; Baylor University Medical Center; Dallas TX U.S.A
9. SCIderm GmbH; Hamburg Germany
10. Department of Geriatric and Environmental Dermatology; Nagoya City University Graduate School of Medical Sciences; Nagoya Japan
11. Department of Dermatology; The Jikei University School of Medicine; Tokyo Japan
12. Dermatologikum Hamburg; Hamburg Germany