1. Department of Epidemiology UCLA Fielding School of Public Health Los Angeles California USA
2. Department of Neurology University of California, Davis Sacramento California USA
3. Alzheimer's Disease Center University of California, Davis Sacramento California USA
4. Department of Epidemiology and Biostatistics University of California, San Francisco San Francisco California USA
5. Division of Research Kaiser Permanente Northern California Oakland California USA
6. Department of Public Health Sciences University of California, Davis Davis California USA