1. Department of Dermatology, Hospital Universitario Ramon y Cajal, Madrid, Spain
2. School of Medicine, Universidad Francisco de Vitoria, Madrid, Spain
3. Departments of Dermatologists, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
4. 2nd Department of Dermatology, Colentina Clinical Hospital, Bucharest, Romania
5. Department of Dermatology, University of Rome “Tor Vergata,” Rome, Italy
6. Department of Dermatology, University Hospitals Leuven, Leuven, Belgium
7. Brain-Skin Unit, The Dermatology Centre, Departments of Dermatologists, University of Manchester and Salford Royal Hospital, Manchester, UK
8. Department of Dermatology, University Hospital of Muenster, Muenster, Germany