1 Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester; Cancer Dynamics Laboratory, The Francis Crick Institute, London, UK. Electronic address: jonathan.lim@doctors.org.uk.
2 Department of Internal Medicine III, University Hospital LMU Munich, Comprehensive Cancer Centre Munich and German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany.
3 Vall d'Hebron Institute of Oncology (VHIO), Vall d'Hebron University Hospital Campus, Barcelona, Spain.
4 Department of Internal Medicine and Medical Specialties (DiMI), School of Medicine, University of Genova, Genoa; Department of Medical Oncology, U.O. Clinical di Oncologia Medica, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
5 Centre for Dermatooncology, Eberhard Karls University of Tübingen, Tübingen; Cluster of Excellence IFIT (EXC2180), Tübingen, Germany.