1. Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva
2. Department of Clinical Dentistry, University of Bergen
3. Department of Fixed Prosthodontics and Biomaterials, University Clinics of Dental Medicine, University of Geneva
4. Division of Gerodontology, School of Dental Medicine, University of Bern
5. Service of Geriatrics, Department of Internal Medicine, Rehabilitation and Geriatrics, University Hospitals of Geneva