1. Department of Geriatrics, University Hospital Zurich, Switzerland
/ Centre on Aging and Mobility, University of Zurich, Switzerland
2. Zurich Geriatric Services and Nursing Homes, Zurich, Switzerland
3. Centre on Aging and Mobility, University of Zurich, Switzerland / Department of Internal Medicine, University Hospital Zurich, Switzerland
4. Department of Geriatrics, University Hospital Zurich, Switzerland
/ Centre on Aging and Mobility, University of Zurich, Switzerland / University Clinic for Acute Geriatric Care, City Hospital Waid and Triemli, Zurich, Switzerland