1. Dermatology Department University of Tours Tours France
2. Laboratory ‘Biologie des Infections à Polyomavirus’ ISP1282 INRA Université de Tours Tours France
3. Translational Skin Cancer Research German Cancer Consortium (DKTK) Essen Germany
4. University Medicine Essen Essen and Deutsches Krebsforschungszenrtrum (DKFZ) Heidelberg Germany