1. Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
2. Theme Cancer, Karolinska University Hospital, Stockholm, Sweden
3. Department of Dermatology, Karolinska University Hospital, Stockholm, Sweden
4. Dermatology and Venereology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
5. Department of Pathology, Karolinska University Hospital, Stockholm, Sweden
6. Department of Ophthalmology, Sahlgrenska University Hospital, Gothenburg, Sweden