1. Department of Internal Medicine, Section of Geriatric Medicine, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
2. Department of Internal Medicine and Paediatrics (section of Geriatrics), Ghent University, Ghent, Belgium
3. Department of Geriatric Medicine, Odense University Hospital, Odense, Denmark and Geriatric Research Unit, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
4. Istanbul Medical School, Department of Internal Medicine, Division of Geriatrics, Istanbul University, Capa, Istanbul, Turkey
5. Department of Geriatrics and Gerontology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic and Faculty of Health and Social Sciences, South Bohemian University, Česke Budějovice, Czech Republic
6. Laboratory for Research on Aging Society, Department of Sociology of Medicine, Epidemiology and Preventive Medicine Chair, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
7. Faculty of Industrial Design Engineering, Delft University of Technology, Delft, The Netherlands
8. School of Pharmacy, University of Eastern Finland, Kuopio, Finland
9. Division of Geriatrics, Department of Internal Medicine, Şişli Hamidiye Etfal Training and Research Hospital, University of Medical Sciences, Istanbul, Turkey
10. Department of Gerontology, Neuroscience and Orthopedics, Catholic University of the Sacred Heart, Rome, Italy
11. Health Care of Older People, East Kent Hospitals University NHS Foundation Trust, Canterbury, Kent, UK
12. Effective Prescribing and Therapeutics, Health and Social Care Directorate, Scottish Government, Edinburgh, Scotland, UK
13. Unit of Innovation and Organization, Navarre Health Service, Pamplona, Spain
14. Department of Geriatrics, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
15. Servicio de Geriatría, Hospital General Universitario de Ciudad Real and CIBER de Fragilidad y Envejecimiento Saludable, Spain
16. Agaplesion Bethesda Clinic, Geriatric Research Unit Ulm University and Geriatric Centre Ulm, Ulm, Germany
17. Research Department of Primary Care and Population Health, University College London, London, UK
18. Department of Clinical Gerontology, King's College, London, England, UK
19. Servicio de Geriatría, Hospital Universitario Ramón y Cajal (IRYCIS), Madrid, Spain
20. Department of Geriatric Medicine and Expertise Centre Pharmacotherapy in Old Persons, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
21. Outpatient Geriatric Assessment Unit, Henry Dunant Hospital Center, Athens, Greece
22. Landspitali University Hospital, Iceland and Faculty of Medicine, University of Iceland, Reykjavik, Iceland
23. Department of Internal Medicine, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands and Department of Epidemiology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
24. Institute for Clinical Pharmacology, Medical Faculty Mannheim, Ruprecht-Karls-University Heidelberg, Germany
25. Department of Geriatric Medicine, Cork University Hospital, Cork, Ireland and Department of Medicine, University College Cork, Cork, Ireland
26. Geriatria, Accettazione Geriatrica e Centro di ricerca per l'invecchiamento, IRCCS INRCA, Ancona, Italy