1. Department of DermatologyHospital Parc Taulí Sabadell Barcelona Spain
2. Department of DermatologyHospital Clinic I Provincial Barcelona Spain
3. Department of DermatologyHospital de la Santa Creu i Sant Pau Barcelona Spain
4. Department of DermatologyHospital Moisés Broggi Barcelona Spain
5. Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Departments of Dermatology, Faculties of MedicineUniversity of Chile and Pontifical Catholic University of Chile Santiago Chile