1. Geriatric Service Nancy University Hospital Nancy 54511France
2. Inserm U1116 Faculty of Medicine, Université de Lorraine Nancy 54500France
3. The Hebrew University–Hadassah School of Public Health and Community Medicine Ein Kerem Jerusalem Israel
4. Department of Epidemiology Mailman School of Public Health, Columbia University New York NY 10032USA
5. New York State Psychiatric Institute New York NY 10032USA
6. The Center of Human Development and Aging University of Medicine and Dentistry of New Jersey, New Jersey Medical School Newark NJ 07103 USA
7. Center for Cardiovascular Health Tulane University New Orleans LA 70118USA
8. Epidemiology and Statistics Units Institute of Public Health, Danish Twin Registry and Danish Aging Research Center, University of Southern Denmark Odense Denmark
9. Department of Microbiology and Molecular Genetics University of Medicine and Dentistry of New Jersey, New Jersey Medical School Newark NJ 07103 USA