1. Department of Medicine, Soochow University School of Medicine, Suzhou, Jiang-su, China
2. Department of Neurology, The First people’s Hospital of Jiangxia District, Wuhan, Hu-bei, China
3. Department of Vascular Neurosurgery, The PLA Rocket Force Characteristic Medical Center, Soochow University School of Medicine, Beijing, China
4. Department of Neurology, Wuhan Fifth Hospital, Jianghan University School of Medicine, Wuhan, Hu-bei, China