1. Department of Pathology Instituto Valenciano de Oncología, Patologika Laboratory Hospital Quirón‐Salud Valencia Spain
2. Pathology Department University of Valencia Valencia Spain
3. Cancer CIBER (CIBERONC) Madrid Spain
4. 2nd Department of Pathology National and Kapodistrian University of Athens, School of Medicine, “Attikon” University Hospital Athens Greece
5. “Total Skin Dermatology” Clinic Athens Greece
6. Department of Pathology and Dermatology New York School of Medicine New York USA
7. Department of Pathology & Laboratory Medicine Memorial Sloan Kettering Cancer Center New York USA