1. Department of Oral and Maxillofacial Diseases; University of Helsinki and Helsinki University Hospital; Helsinki Finland
2. Department of Bacteriology and Immunology; University of Helsinki and Helsinki University Hospital; Helsinki Finland
3. Department of Rheumatology; University of Helsinki and Helsinki University Hospital; Helsinki Finland
4. Immunopharmacology Research Group; University of Tampere School of Medicine and Tampere University Hospital; Tampere Finland
5. Department of Dental Medicine; Karolinska Institutet; Huddinge Sweden