1. Department of Neurology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
2. International Headache Centre, Chinese PLA General Hospital, Beijing, China
3. Department of Neurology, Headache Center, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
4. Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
5. Department of Neurology, Shanghai Donglei Brain Hospital, Shanghai, China
6. Department of Neurology, Guizhou Province People’s Hospital, Guiyang, Guizhou, China
7. Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
8. Department of Neurology, Dalian Municipal Central Hospital, Dalian, Liaoning, China
9. Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
10. Department of Neurology, General Hospital of Northern Theatre Command, Shenyang, Liaoning, China
11. Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
12. Department of Neurology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
13. Department of Neurology, LiShui Municipal Central Hospital, Lishui, ZheJiang, China
14. Department of Neurology, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
15. Department of Neurology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong, China
16. Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
17. Department of Neurology, Xingtai People’s Hospital, Xingtai, Hebei, China
18. Department of Neurology, The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation Army, Lanzhou, Gansu, China
19. Department of Neurology, Zhengzhou People Hospital, Zhengzhou, Henan, China
20. Department of Neurology, Tongji Hospital, Tongji Medical Collage Huazhong University of Science & Technology, Wuhan, Hubei, China
21. Department of Neurology, Renmin hospital of Wuhan University, Wuhan, Hubei, China
22. Department of Neurology, Neuroscience Center, the First Hospital, Jilin University, Changchun, Jilin, China
23. Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei, China
24. Department of Neurology, Xuchang Central Hospital Affiliated to Henan University of Science and Technology, Xuchang, Henan, China
25. Department of Neurology, Wuhan No.1 Hospital, Wuhan, Hubei, China
26. Department of Neurology, Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
27. Institute of Geriatrics, Beijing Key Laboratory of Aging and Geriatrics, National Clinical Research Center for Geriatrics Diseases, Second Medical Center of Chinese PLA General Hospital, Beijing, China