| Affiliation: | 1. Haartman Institute, Medicum, University of Helsinki, Helsinki, Finland;2. Department of Public Health, University of Helsinki, Helsinki, Finland;3. Allergy Centre, Tampere University Hospital, Tampere, Finland;4. HUSLAB, Helsinki University Hospital, Helsinki, Finland;5. Living Environment and Health Unit, National Institute for Health and Welfare, Kuopio, Finland;6. Skin and Allergy Hospital, Hospital District of Helsinki and Uusimaa, Helsinki University Hospital and University of Helsinki, Helsinki, Finland |
