1. Faculty of Medicine and Health Technology, Department of Dermatology and Venereology, Tampere University, Tampere, Finland
2. Department of Dermatology and Allergology, Tampere University Hospital, Tampere, Finland
3. Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland
4. Faculty of Medicine and Health Technology, Department of Pathology and FIMLAB, Tampere University, Tampere, Finland
5. Unit of Primary Health Care, Department of General Practice, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland
6. Unit of Primary Health Care, Kuopio University, Kuopio, Finland
7. Non-Ionizing Radiation Surveillance, Radiation and Nuclear Safety Authority (STUK), Helsinki, Finland
8. Department of Dermatology, University of Turku, Turku, Finland
9. Department of Public Health, Finnish Institute for Health and Welfare (THL), Helsinki, Finland