Author affiliations:
1 Department of Neurology, Peking Union Medical College Hospital, Beijing 100730, China
2 Department of Neurology, SanBo Brain Hospital, Capital Medical University, Beijing 100093, China
3 Medical Research Center, State Key laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
4 Department of Neurosurgery, Peking Union Medical College Hospital, Beijing 100730, China
5 Department of pathology, Peking Union Medical College Hospital, Beijing 100730, China