| Affiliation: | 1. Division of Population and Patient Health, King's College London Dental Institute at Guy's, King's College and St. Thomas’ Hospitals, London, UK;2. Department of Oral Public Health, Institute of Dentistry, University of Eastern Finland, Kuopio, Finland;3. The Living Environment and Health Unit, National Institute for Health and Welfare, Kuopio, Finland;4. The Health Monitoring Unit, National Institute for Health and Welfare, Helsinki, Finland;5. Department of Oral and Maxillofacial Diseases, Kuopio University Hospital, Kuopio, Finland;6. Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland |
