1. Institute of Hypoxia MedicineXuanwu Hospital, Capital Medical University, Beijing, China
2. Department of NeurologyLuHe Hospital, Beijing, China
3. Department of NeurosurgeryWayne State University School of Medicine, Detroit, MI, USA
4. Cerebrovascular Diseases Research Institute
5. Department of Neurosurgery
6. Department of NeurologyXuanwu Hospital, Capital Medical University, Beijing, China