1. Department of Dermatology; Hospital Universitario 12 de Octubre; Madrid Spain
2. Division of Molecular Genetic Epidemiology, German Cancer Research Center, Heidelberg, Germany
3. Laboratory of Molecular Biology; Instituto Valenciano de Oncología; València Spain
4. Department of Dermatology; Instituto Valenciano de Oncología; València Spain
5. Department of Medical Oncology; Instituto Valenciano de Oncología; València Spain
6. German Consortium for Translational Research, German Cancer Research Center; Heidelberg Germany
7. School of Medicine; Universidad Católica de Valencia “San Vicente Mártir”; València Spain