1. Division of Geriatrics Universidade de Sao Paulo, Faculdade de Medicina Sao Paulo Brazil
2. Department of Pathology Universidade de Sao Paulo, Faculdade de Medicina Sao Paulo Brazil
3. Department of Medical Surgical Nursing University of Sao Paulo, Escola de Enfermagem Sao Paulo Brazil
4. Department of Neurology Universidade de Sao Paulo, Faculdade de Medicina Sao Paulo Brazil
5. Department of Neurology Memory and Aging Center, University of California San Francisco San Francisco CA