1. Department of Family Medicine and Public Health; University of California; San Diego California
2. Department of Neurosciences; University of California; San Diego California
3. Graduate School of Public Health; San Diego State University; San Diego California
4. Public Health Sciences Division; Fred Hutchinson Cancer Research Center; Epidemiology Division; Seattle Washington
5. Department of Neurology; University of California; San Francisco California
6. Department of Neurology; University of Washington; Seattle Washington
7. Department of Neurology; Zhong Shan Hospital; Fudan University; Shanghai PR China
8. The State Key Laboratory of Medical Neurobiology, The Institutes of Brain Science and the Collaborative Innovation Center for Brain Science; Fudan University; Shanghai China
9. Department of Neurology; Washington University St. Louis; St. Louis Missouri
10. Department of Epidemiology; Fudan University; Zhong Shan Hospital; Shanghai PR China
11. Department of Epidemiology; University of Washington; Seattle Washington