1. Alzheimer Disease Research Unit; CIEN Foundation; Carlos III Institute of Health, Alzheimer Center Reina Sofia Foundation; Madrid Spain
2. National School of Public Health; Carlos III Institute of Health and REDISSEC; Madrid Spain
3. Department of Preventive Medicine and Quality Management; Gregorio Marañón General University Hospital; Madrid Spain
4. National Center of Epidemiology; Carlos III Institute of Health; Consortium for Biomedical Research in Neurodegenerative Disease (CIBERNED); Spanish National Research Council; Madrid Spain
5. Institute of Economics, Geography and Demography; Center for Human and Social Sciences; Spanish National Research Council; Madrid Spain