1. Department of Pathology Hospital de la Santa Creu i Sant Pau, Universitat Autònoma Barcelona Spain
2. Department of Dermatology Hospital de la Santa Creu i Sant Pau, Universitat Autònoma Barcelona Spain
3. Department of Dermatology Hospital del Mar, Universitat Autònoma Barcelona Spain
4. Department of Pathology Hospital del Mar, Universitat Autònoma Barcelona Spain
5. Department of Dermatology Hospital Universitari Sagrat Cor‐Grupo Quironsalud Barcelona Spain
6. Department of Pathology Hospital Universitari General de Catalunya‐Grupo Quironsalud Barcelona Spain