1. Ageing Clinical Research, Department II of Internal Medicine and Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
2. Department of Medical Psychology ∣ Neuropsychology and Gender Studies, Center for Neuropsychological Diagnostics and Intervention (CeNDI), Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
3. AF Gehirntraining, Bedburg, Germany
4. C Plus, Krefeld, Germany
5. Neuromed-Campus Hohenlind, Cologne, Germany
6. CECAD, University of cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany