1. Division of Gerodontology and Removable Prosthodontics University Clinics of Dental Medicine University of Geneva Geneva Switzerland
2. Undergraduate Student University Clinics of Dental Medicine University of Geneva Geneva Switzerland
3. Division of Internal Medicine of the Aged Department of Rehabilitation and Geriatrics University Hospitals of Geneva Thônex Switzerland
4. Division of Geriatrics Department of Rehabilitation and Geriatrics University Hospitals of Geneva Thônex Switzerland