[1] Angers University Hospital (4 rue larrey),Department of Internal Medicine and Geriatrics
[2] Institut fur Sportwissenschaft und Sport,Department of Acute Geriatrics
[3] Friedrich-Alexander-Universitaet Erlangen-Nuernberg,Department of Rehabilitation and Geriatrics
[4] Basel University Hospital and University of Basel,Department of Neurology
[5] Geneva University Hospitals of Geneva,undefined
[6] Geneva University Hospital of Geneva,undefined