1. Departments of Neurology and Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
2. Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
3. Department of Intensive Care Unit, Ninth Hospital of Xi’an, Xi’an, China
4. Department of Neurology, Tianjin Huanhu Hospital, Tianjin, China
5. Department of Neurosurgery, Wayne State University School of Medicine, Detroit, MI, USA
6. Department of Neurology Intensive Care Unit, First Affiliated Hospital of Dalian Medical University, Dalian, China