1. Consultant Dermatologist, Bonheiden, Belgium;
2. Department of Dermatology, University of Brescia, Brescia, Italy;
3. Department of Dermatology, University Hospital Infanta Leonor de Madrid, Madrid, Spain;
4. Department of Dermatology, Bürgenstock Medical Center, Obbürgen, Switzerland;
5. Department of Dermatology, Fondation Hôpital Saint Joseph, Paris, France;
6. St John’s Institute of Dermatology, Guy’s and St Thomas’ NHS Foundation Trust, London, UK;
7. Institute and Comprehensive Center for Inflammation Medicine, University of Lübeck, Lübeck, Germany;
8. SKiN Centre for Dermatology, Probity Medical Research and Queen’s University, Peterborough, Canada