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