| Affiliation: | 1. Institute of Dentistry, University of Turku, Turku, Finland;2. Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland;3. Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland;4. Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden;5. Institute of Dentistry, University of Eastern Finland, Kuopio, Finland;6. Unit of Living Conditions, Health and Wellbeing, Department of Environmental Health in Environmental Epidemiology Unit, National Institute for Health and Welfare (THL), Kuopio, Finland;7. Department of Oral and Maxillofacial Surgery, Kuopio University Hospital, Kuopio, Finland;8. Welfare Division, Oral Health Care, City of Turku, Turku, Finland |
