1. Faculty of Medicine University of Helsinki Helsinki Finland
2. Department of Otorhinolaryngology and Phoniatrics – Head and Neck Surgery Helsinki University Hospital Helsinki Finland
3. Faculty of Veterinary Medicine University of Helsinki Helsinki Finland
4. Faculty of Biological and Environmental Sciences University of Helsinki Helsinki Finland
5. Finnish Meteorological Institute Helsinki Finland
6. Finnish Institute of Occupational Health Kuopio Finland
7. HUS Inflammation Center Helsinki University Hospital Helsinki Finland
8. HUS Diagnostic Center, HUSLAB Helsinki University Hospital Helsinki Finland