1. Department of Cancer Epidemiology, Cancer Hospital/Institute, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, People’s Republic of China
2. Department of Family Medicine, Rush University Medical College, Chicago, IL, USA
3. Fogarty International Center, National Institutes of Health, Bethesda, MD, USA
4. Department of Epidemiology, Dalian Medical University, Dalian, People’s Republic of China
5. Department of Neurology, The Second Affiliated Hospital of Dalian, Dalian, People’s Republic of China
6. Food and Drug Administration, Silver Spring, MD, USA
7. Department of Neurology, University of California Davis, Davis, CA, USA