1. Division of Gerodontology; Department of Prosthodontics; School of Dentistry; National and Kapodistrian University of Athens; Athens Greece
2. Institute of Dentistry; Faculty of Medicine; Jagiellonian University Medical College; Kraków Poland
3. Aging Branch; Neuroscience Institute; National Research Council; Padova Italy
4. Centre for Public Health; Royal Victoria Hospital; Queens University Belfast; Belfast Northern Ireland
5. Department of Internal Medicine (Geriatrics); Faculty of Medicine and Health Sciences; Ghent University; Ghent Belgium
6. Department of Internal Medicine; Medical University of Graz; Graz Austria
7. Division of Gerodontology; School of Dental Medicine; University of Bern; Bern Switzerland
8. Faculty of Medicine of Vilnius University; Vilnius Lithuania
9. Department of Community Dentistry; Ghent University; Ghent Belgium
10. Department of Gerodontology and Removable Prosthodontics; University of Geneva; Geneva Switzerland