1. Department of Clinical Sciences, Division of Oncology and Pathology, Lund University, Lund, Sweden
2. Department of Clinical Sciences, Division of Surgery, Lund University, Lund, Sweden
3. Department of Oncology, Skåne University Hospital, Lund University, Lund, Sweden
4. Department of Clinical Pathology, Skåne University Hospital, Lund University, Lund, Sweden
5. Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
6. Department of Dermatology, Helsingborg General Hospital, Helsingborg, Sweden
7. Department of Dermatology, Harvard Medical School, Boston, USA
8. Wellman Center for Photomedicine, MGH Cancer Center, Massachusetts General Hospital, Boston, USA