1. Department of Dermatology Hospital Universitario de La Princesa Madrid Spain
2. Department of Pathology Hospital Universitario de La Princesa Madrid Spain
3. Department of Dermatology Hospital Universitario Virgen Macarena Sevilla Spain
4. Department of Pathology Hospital Universitario Virgen Macarena Sevilla Spain
5. Department of Dermatology Hospital Clínico Universitario Salamanca Spain
6. Department of Pathology Hospital Clínico Universitario Salamanca Spain
7. Department of Dermatology Hospital Universitari Germans Tries y Pujol Barcelona Spain
8. Head of Surgical Pathology Area, Pathology Department Sant Cugat del Valles Hospital Universitari General de Catalunya Spain
9. Department of Dermatology Hospital Clínic Barcelona Spain