1. Dermatology Department Hospital de la Santa Creu i Sant Pau Universitat Autònoma de Barcelona Barcelona Spain
2. Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU) Barcelona Spain
3. Department of Medicine Dermatology Service Memorial Sloan Kettering Cancer Center New York New York USA
4. Department of Dermatology Tel Aviv Sourasky Medical Center Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
5. Department of Dermatology Erasmus Medical Center Cancer Institute University Medical Center Rotterdam Rotterdam The Netherlands