1. Division of Endocrinology; Diabetes, and Metabolism; University of Pennsylvania School of Medicine; Philadelphia; PA; USA
2. Department of Internal Medicine and Biomedical Sciences; Section of Geriatrics; University of Parma; Parma; Italy
3. Geriatric Rehabilitation Department; University Hospital of Parma; Parma; Italy
4. National Institute on Aging (NIA); National Institutes of Health (NIH); Baltimore; MD; USA
5. Department of Psychiatry; VU University Medical Center/GGZ inGeest; Amsterdam; the Netherlands