1. Department of Dermatology and
2. Medical Practice Evaluation Center, Mongan Institute, Massachusetts General Hospital , Boston, MA , USA
3. Academia Española de Dermatología y Venereología , Madrid , Spain
4. Complexo Hospitalario Universitario de Vigo , Vigo , Spain
5. Centro Studi GISED, Bergamo , Italy
6. King’s College London , London , UK