1. Section of Epidemiology and Biostatistics, Leeds Institute of Cancer and Pathology, University of Leeds, Leeds, UK
2. National Heart and Lung Institute, Imperial College, London, UK
3. Yorkshire Regional Genetics Service, Chapel Allerton Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK
4. Department of Pathology, University Hospitals Leuven, Leuven, Belgium
5. European Organisation for Research and Treatment of Cancer (EORTC) Melanoma Group, Brussels, Belgium
6. Department of General Medical Oncology, Leuven Cancer Institute, University Hospitals Leuven, Leuven, Belgium
7. School of Medicine, University of Nottingham, Nottingham, UK
8. Department of Dermatology, Essen University Hospital, Essen, and German Consortium of Translational Cancer Research (DKTK), Heidelberg, Germany
9. Division of Oncology and Pathology, Department of Clinical Sciences, Lund University, Lund, Sweden