Garbe, Claus, Amaral, Teresa, Peris, Ketty, Hauschild, Axel, Arenberger, Petr, Bastholt, Lars, Bataille, Veronique, Del Marmol, Veronique, Dréno, Brigitte, Fargnoli, Maria Concetta, Grob, Jean-Jacques, Höller, Christoph, Kaufmann, Roland, Lallas, Aimilios, Lebbé, Celeste, Malvehy, Josep, Middleton, Mark, Moreno-Ramirez, David, Pellacani, Giovanni, Saiag, Philippe, Stratigos, Alexander J, Vieira, Ricardo, Zalaudek, Iris, Eggermont, Alexander M M, European Dermatology Forum (EDF), the European Association of Dermato-Oncology (EADO), and the European Organization for Research and Treatment of Cancer (EORTC), Garbe, Clau, Amaral, Teresa, Peris, Ketty, Hauschild, Axel, Arenberger, Petr, Bastholt, Lar, Bataille, Veronique, Del Marmol, Veronique, Dréno, Brigitte, Fargnoli, Maria Concetta, Grob, Jean-Jacque, Höller, Christoph, Kaufmann, Roland, Lallas, Aimilio, Lebbé, Celeste, Malvehy, Josep, Middleton, Mark, Moreno-Ramirez, David, Pellacani, Giovanni, Saiag, Philippe, Stratigos, Alexander J, Vieira, Ricardo, Zalaudek, Iri, Eggermont, Alexander M M, Centre d’Investigation Clinique de Nantes (CIC Nantes), Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre hospitalier universitaire de Nantes (CHU Nantes), Aix-Marseille Université - Faculté des sciences médicales et paramédicales (AMU SMPM), Aix Marseille Université (AMU), Service de Dermatologie [AP-HP Hôpital Saint-Louis], Hopital Saint-Louis [AP-HP] (AP-HP), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Université de Versailles Saint-Quentin-en-Yvelines - UFR Sciences de la santé Simone Veil (UVSQ Santé), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Hôpital Ambroise Paré [AP-HP], Novartis Les Laboratories Pierre Fabre Berlin Mathematical School, BMS AbbVie Sanofi Pfizer Amgen Eisai GlaxoSmithKline, GSK Roche DUSA Pharmaceuticals Merck KGaA Meso Scale Diagnostics, MSD, C.G. reports receiving personal fees from Amgen, Pierre Fabre, Philogen and MSD, and reports receiving grants and personal fees from Novartis, NeraCare, BMS, Roche and Sanofi, outside the submitted work.T.A. reports receiving personal fees and other grants from BMS, Novartis, Pierre Fabre, Neracare and Sanofi, outside the submitted work.K.P. reports receiving personal fees from Novartis, Roche, Sanofi, Lilly, Leopharma, Pierre Fabre, Almirall and Celgene, outside the submitted work.A.H. reports receiving grants and personal fees from Amgen, BMS, MerckSerono, MSD / Merck, Philogen, Pierre Fabre, Provectus, Regeneron, Roche, Sanofi-Genzyme, and Novartis Pharma, receiving personal fees from OncoSec and Sun Pharma, outside the submitted work.P.A. reports receiving personal fees from Amgen, MSD, Novartis, BMS and Roche, outside the submitted work.L.B. reports receiving grants from BMS, during the conduct of the study, personal fees from BMS, Novartis, Merck MSD, Roche, Incyte, Bayer, outside the submitted work.V.B. reports receiving personal fees from Novartis and Merck MSD, outside the submitted work.V.d.M. reports receiving personal fees from MSD, BMS and Sanofi, grants and personal fees from ABVIE, grants from Jansen, outside the submitted work.B.M. reports grants and personal fees from BMS, Roche, Fabre and Sanofi, personal fees from MSD, outside the submitted work.M.C.F. reports receiving grants and personal fees from Almirall, Leo Pharma, Novartis, Sanofi, Abbvie and Galderma, personal fees from Janssen, Lilly, UCB, Celgene, Pierre Fabre, Mylan, Medac Pharma, Roche, Sun Pharma, outside the submitted work.J.J.G. reports receiving personal fees from Amgen, MSD, Novartis, BMS, Roche, Pierre fabre, MercK / Pfizer, outside the submitted work.C.H. reports receiving personal fees from Amgen, MSD, Novartis, Incyte, BMS, Pierre Fabre, Roche, Sanofi, outside the submitted work.R.K. reports receiving grants and personal fees from Novartis and Roche, and grants from AbbVie, Amgen, Bionteck, BMS, Celgene, Galderma, Janssen, Leo, Lilly, Merck, MSD, Pierre Fabre, Regeneron and Wyeth, outside the submitted work.A.L. reports personal fees from Amgen, Novartis, BMS and, Sanofi grants and personal fees from Roche, outside the submitted work.C.L. reports receiving grants and personal fees from Bristol-Myers Squibb and Roche, personal fees from MSD, Novartis, Amgen, Avantis Medical Systems, Pierre Fabre, Pfizer, Incyte, outside the submitted work.J.M. reports personal fees from Amgen, personal fees from MSD, grants from Novartis, grants and personal fees from BMS, grants and personal fees from Roche, grants and personal fees from Almirall, personal fees from Sun Pharma, outside the submitted work.M.M. reports receiving personal fees from Amgen and BiolineRx, grants and personal fees from Roche and GSK, grants from Astrazeneca, personal fees and other from Novartis, Eisai, Array Biopharma (now Pfizer), Rigontec (acquired by MSD), and BMS, other from Millennium, Regeneron Pfizer, personal fees, non-financial support and other from Immunocore, Replimun and Merck / MSD, outside the submitted work.G.P. reports receiving personal fees from Novartis, personal fees from Sanofi, grants from Novartis, instruments from 3Gen, Vidix, Fotofinder and MAVIG GmbH, outside the submitted work.P.S. reports receiving personal fees from Amgen, MSD and Pierre Fabre / array, grants and personal fees from Novartis, NeraCare, BMS, Roche, and Sanofi, outside the submitted work.A.J.S. reports personal fees and/or research support from Novartis, Roche, BMS, Abbvie, Sanofi, Regeneron, Genesis Pharma, outside the submitted work. Dr. Vieira has nothing to disclose.I.Z. reports receiving personal fees from Difa Cooper, MSD, Sanofi, Almirall Hermal, Novartis, Mylan and Sunpharma, grants and personal fees from Roche, outside the submitted work.A.M.M.E. reports receiving personal fees from Biocad, Biovent, BMS, CatalYm, Ellipses, GSK, Incyte, IO Biotech, ISA Pharmaceuticals, Merck GmbH, MSD, Novartis, Pfizer, Polynoma, Regeneron, Sanofi, SkylineDx, Stellas, other from RiverD, SkylineDx, Theranovir, all outside the submitted work., Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, Portuguese Air Force Health Care Direction [Lisbon, Portugal] (PAFHCD), Fondazione Policlinico Universitario Agostino Gemelli IRCCS, University Medical Center of Schleswig–Holstein = Universitätsklinikum Schleswig-Holstein (UKSH), Kiel University, Charles University [Prague] (CU), Odense University Hospital (OUH), King‘s College London, Université libre de Bruxelles (ULB), Centre de Recherche en Cancérologie et Immunologie Nantes-Angers (CRCINA), Université d'Angers (UA)-Université de Nantes (UN)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre hospitalier universitaire de Nantes (CHU Nantes), University of L'Aquila [Italy] (UNIVAQ), Assistance Publique - Hôpitaux de Marseille (APHM), Medizinische Universität Wien = Medical University of Vienna, Frankfurt University Hospital, Aristotle University of Thessaloniki, Immunologie humaine, physiopathologie & immunothérapie (HIPI (UMR_S_976 / U976)), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Cité (UPCité), Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Universitat de Barcelona (UB), University of Oxford, Hospital Universitario Virgen Macarena [Séville], University - Hospital of Modena and Reggio Emilia [Modena, Italy], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), University of Athens Medical School [Athens], Universidade de Coimbra [Coimbra], Università degli studi di Trieste = University of Trieste, Fondazione IRCCS Ca' Granda - Ospedale Maggiore Policlinico, Princess Máxima Center for Pediatric Oncology, and Dupuis, Christine