Military Medical Academy of Belgrade, affiliation not provided to SSRN, Odense University Hospital, affiliation not provided to SSRN, Netherlands Cancer Institute - Division of Molecular Oncology and Immunology, affiliation not provided to SSRN, University Hospital Centre Zagreb, Medical University of Vienna, Clinical Center University of Sarajevo, Universitair Ziekenhuis Brussel, affiliation not provided to SSRN, affiliation not provided to SSRN, Aristotle University of Thessaloniki, The University of Manchester, University Hospital Zurich, Hospital Universitario Gregorio Marañón, Ovidius University of Constanta, Elbe Kliniken Buxtehude, Vilnius University, Institute of Oncology Ljubljana, University of Szeged, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Saints Cyril and Methodius University of Skopje, affiliation not provided to SSRN, Schleswig-Holstein University and University of Tübingen - Centre for Dermatooncology

University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, Helios Klinikum Erfurt, University of Lubeck, Heidelberg University - Department of Dermatology, Saarland University - Medical School, Harzklinikum Dorothea Christiane Erxleben, University of Witten/Herdecke - Witten/Herdecke University Hospital, Elbe Kliniken Buxtehude, University Hospital Mühlenkreiskliniken Minden, Dresden University of Technology, Ludwigshafen Medical Center, Schleswig-Holstein University, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen, University of Duisburg-Essen - University Hospital Essen and University of Duisburg-Essen - University Hospital Essen