1. Department of Rehabilitation and Aged Care; Hospital Ancelle; Cremona Italy
2. Geriatric Research Group; Brescia Italy
3. Center for Quality of Ageing; Vanderbilt University; Nashville Tennessee
4. Center for Health Services Research; Vanderbilt University; Nashville Tennessee
5. Department of Medicine; Vanderbilt University; Nashville Tennessee
6. Division of General Internal Medicine and Public Health; Vanderbilt University; Nashville Tennessee
7. Clinical Research Training Center of Excellence; Tennessee Valley Healthcare System; Nashville Tennessee. Veterans Affairs Tennessee Valley Geriatric Research; Education and Clinical Center; Department of Veterans Affairs Medical Center; Tennessee Valley Healthcare System; Nashville Tennessee
8. School of Nursing; Pennsylvania State University; University Park Pennsylvania
9. Department of Clinical and Preventive Medicine; University of Milano-Bicocca; Monza Italy
10. Geriatric Clinic; S. Gerardo Hospital; Monza Italy
11. Eskind Biomedical Library; Vanderbilt University Medical Center; Nashville Tennessee
12. Veterans Affairs Tennessee Valley Geriatric Research; Education and Clinical Center; Department of Veterans Affairs Medical Center; Tennessee Valley Healthcare System; Nashville Tennessee
13. Edinburgh Delirium Research Group; Centre for Cognitive Ageing and Cognitive Epidemiology; Geriatric Medicine Unit; University of Edinburgh; Edinburgh UK
14. University of Tor Vergata; Rome Italy
15. Aging Brain Center; Institute for Aging Research; Hebrew SeniorLife; Harvard Medical School; Boston Massachusetts
16. Division of Allergy, Pulmonary, and Critical Care Medicine; Vanderbilt University; Nashville Tennessee