1. Department of Dermatology and Allergology Päijät‐Häme Social and Health Care Group Lahti Finland
2. Department of Dermatology Faculty of Medicine and Health Technology Tampere University Hospital and Tampere University Tampere Finland
3. Department of Dermatology and Allergology Helsinki University Hospital Helsinki Finland
4. HUSLAB Laboratory Services Helsinki University Hospital Hospital District of Helsinki and Uusimaa Helsinki Finland
5. Faculty of Information Technology University of Jyväskylä Jyväskylä Finland
6. Department of Dermatology Satasairaala Pori Finland
7. Departments of Pathology and Dermatology Institutes of Biomedicine and Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden