1. Department of Cellular Pathology Hospital Universitario El Bierzo Ponferrada Spain
2. Department of Cellular Pathology Hospital de la Reina Ponferrada Spain
3. Department of Research, Institute for Biomedical Research of A Coruña (INIBIC) University of A Coruña (UDC) A Coruña Spain
4. Department of Dermatology Universitary Hospital of A Coruña A Coruña Spain
5. Department of Dermatology Los Angeles Medical Center (LAMC), Southern California Kaiser Permanente Los Angeles California USA