1. The Nursing School of Ribeirao Preto, University of Sao Paulo, Brazil
2. Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco
3. Department of Epidemiology, Boston University School of Public Health, Boston, MA
4. Department of Sociology, University of California, Santa Cruz
5. Department of Epidemiology and Population Health, Stanford University, Stanford
6. Department of Public Health Sciences, University of California Davis, Davis
7. School of Public and Community Health Sciences, University of Montana, Missoula, MT
8. Department of Epidemiology, University of California Los Angeles, Fielding School of Public Health, Los Angeles
9. Division of Research, Kaiser Permanente Northern California, Oakland
10. Department of Neurology, University of California Davis Health, Sacramento, CA