1. Melanoma Unit; Department of Dermatology Hospital Clínic de Barcelona; IDIBAPS; Barcelona University; Barcelona; Spain
2. Division of Epidemiology and Biostatistics; Leeds Institute of Molecular Medicine (LIMM); University of Leeds; Leeds; UK
3. Breast Cancer and Systems Biology Unit; Translational Research Laboratory; Catalan Institute of Oncology; Bellvitge Biomedical Research Institute (IDIBELL); L'Hospitalet; Barcelona; Spain
4. Biomarkers and Susceptibility Unit; Catalan Institute of Oncology; IDIBELL; L'Hospitalet; Barcelona; Spain
5. Department of Twin Research & Genetic Epidemiology; Kings College London; St. Thomas’ Hospital Campus; London; UK