1. Department of DermatologyUniversity of Turku Turku Finland
2. Department of DermatologyTurku University Hospital Turku Finland
3. Institute of Biomedicine, University of Turku Turku Finland
4. Finnish Cancer Registry – Institute for Statistical and Epidemiological Cancer Research Helsinki Finland
5. Department of Pediatric and Adolescent MedicineTurku University Hospital and University of Turku Turku Finland
6. Department of Clinical Genetics, HUSLABHelsinki University Central Hospital Helsinki Finland
7. Department of Medical GeneticsUniversity of Helsinki Helsinki Finland
8. Department of Public Health, Faculty of MedicineUniversity of Helsinki Helsinki Finland