| Affiliation: | 1. Institute for Health Services Research and Policy Studies, Northwestern University, Evanston, IL USA;2. Midwest Center for Health Services and Policy Research, Hines V.A. Hospital, Hines, Illinois USA;1. Department of Orthopaedic Surgery, Randers Central Hospital, Randers, Denmark;2. Department of Endocrinology and Metabolism, University Hospital of Aarhus, Aarhus, Denmark;3. Institute of Epidemiology and Social Medicine, University of Aarhus, Aarhus, Denmark;1. Section Of Old Age Psychiatry, Division of Psychiatry, Queen''s Medical Centre, Nottingham, UK;2. Directorate of Health Care of the Elderly, Queen''s Medical Centre, Nottingham, UK;3. Division of General Practice, The Medical School, Queen''s Medical Centre, Nottingham, UK |
