1. Service neuro-diagnostique et neuro-interventionnel DISIM, University Hospitals of Geneva, Geneva, Switzerland
2. Division of Geriatric Psychiatry, Department of Psychiatry, University Hospitals of Geneva and Faculty of Medicine, University of Geneva, Geneva, Switzerland
3. Department of Rehabilitation and Geriatrics, University Hospitals of Geneva, and Faculty of Medicine, University of Geneva, Geneva, Switzerland
4. Department of Neuroradiology, University Hospital of Heidelberg, Heidelberg, Germany
5. Division of Old Age Psychiatry (PG), University of Lausanne School of Medicine, Lausanne, Switzerland