1. Department of Neurosurgery, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
2. Department of Intensive Care Unit, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
3. Department of Public Health, Medical College of Qingdao University, Qingdao, China
4. Department of Traditional Chinese Medicine, The Affiliated Hospital of Medical College, Qingdao University, Qingdao, China
5. Department of Neurosurgery, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China