1. Department of Hematology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
2. Department of Neurosurgery, Navy General Hospital, Beijing 100050, P.R. China
3. Department of Endocrinology, Qingdao Municipal Hospital Group, Qingdao, Shandong 266011, P.R. China
4. Duke University Hospital, Durham, NC 27710, USA
5. Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
6. Neuroimaging Center, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China
7. Department of Neurology, Central Hospital of Qilu Petrochemical Hospital Group, Zibo, Shandong 255400, P.R. China
8. Core Laboratory for Clinical Medical Research, Beijing Tiantan Hospital, Capital Medical University, Beijing 100050, P.R. China