1. Division of Geriatric Medicine , Clinic Barmelweid, Barmelweid, Switzerland
2. University Clinic for Acute Geriatric Care , City Hospital Waid Zurich, Zurich, Switzerland
3. Department of Urology , City Hospital Triemli of Zurich, Zurich, Switzerland
4. Robert Wood Johnson University Hospital , Rutgers Cancer Institute of New Jersey, New Brunswick, USA
5. Faculty of Medicine and Dentistry , Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
6. Department of Obstetrics & Gynecology , Sahlgrenska Academy, University of Gothenburg, Sweden
7. University of Nottingham School of Medicine , Nottingham, UK, NIHR Applied Research Collaboration-East Midlands (ARC-EM), Nottingham, UK and University of Hospitals of Derby and Burton NHS Foundation Trust, Derby, UK
8. School of Health Sciences , University of Nottingham, Nottingham NG7 2HA, UK