1. Department of Dermatology; Hospital Clínico Universitario ‘Lozano Blesa’; Calle San Juan Bosco 15 Zaragoza 50009 Spain
2. Translational Cancer Research Unit Antwerp; Oncology Centre; General Hospital Sint-Augustinus; Wilrijk 2610 Belgium
3. Department of Medicine, Psychiatry and Dermatology; School of Medicine; University of Zaragoza; Zaragoza 50009 Spain
4. Department of Oncology; KU Leuven; Herestraat 49 Leuven 3000 Belgium