1. Department of Neurology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
2. Department of Pathology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China (mainland)
3. Department of Neurology, Harbin Fourth Hospital, Harbin, Heilongjiang, China (mainland)
4. Department of Neurology, Jixi People’s Hospital, Jixi, Heilongjiang, China (mainland)