1. Department of Dermatology Consorci Corporació Sanitària Parc Taulí Sabadell Spain
2. Department of Dermatology Hospital de la Santa Creu i de Sant Pau Barcelona Spain
3. Department of Dermatology Hospital Clínic i Provincial Barcelona Spain
4. Department of Dermatology Hospital Moisés Broggi Barcelona Spain
5. Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Departments of Dermatology, Faculties of Medicine Universidad de Chile and Pontificia Universidad Católica de Chile Santiago Chile