1. Division of Periodontology, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
2. Department of Periodontology, Public Dental Service at Eastmaninstitutet, Stockholm County Council, Stockholm, Sweden
3. Division of Oral and Maxillofacial Radiology, Department of Dental Medicine Karolinska Institutet, Huddinge, Sweden
4. Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
5. Theme Inflammation and Aging, Karolinska University Hospital, Huddinge, Sweden
6. Oral and Maxillofacial Radiology, Department of Odontology, Umeå University, Umeå, Sweden