1. Department of Neurology, Xuanwu Hospital, Capital Medical University , Beijing, China
2. Department of Neurology, West China Hospital, Sichuan University , Chengdu, China
3. Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University , Guangzhou, China
4. Department of Neurology, Tangdu Hospital, The Fourth Military Medical University , Xi’an, China
5. Department of Neurology, Xiangya Hospital, Central South University , Changsha, China
6. Department of Neurology, The First Affiliated Hospital, College of Medicine, Zhejiang University , Hangzhou, China
7. Department of Evidence-Based Medicine, Xuanwu Hospital, Capital Medical University , Beijing, China
8. National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention , Beijing, China
9. Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University , Beijing, China