1. Department of Dental Medicine; Division of Oral Diseases; Karolinska Institutet; Huddinge Sweden
2. Department of Neurobiology, Care Sciences and Society; Division of Clinical Geriatrics; Karolinska Institutet; Stockholm Sweden
3. Theme Aging; Karolinska University Hospital; Stockholm Sweden
4. Department of Neurobiology, Care Sciences and Society; Division of Neurogeriatrics; Karolinska Institutet; Stockholm Sweden
5. Oral and Maxillofacial Diseases; Faculty of Medicine; University of Helsinki and Helsinki University Hospital; Helsinki Finland