1. Stroke Center & Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
2. Department of Gastroenterology, Zhongshan Hospital of Traditional Chinese Medicine, Zhongshan 528400, China
3. Department of Radiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230001, China
4. Department of Neurology, The First Affiliated Hospital of Anhui University of Science and Technology, Huainan First People’s Hospital, Huainan 232000, China
5. Department of Neurology, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210033, China