1. Department of Geriatric Medicine, The First Affiliated Hospital of Jilin University, Changchun, China
2. Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
3. Department of Electrical Diagnosis, The General Hospital of Fourth Hospital of Jilin University, Changchun, China
4. Department of Thoracic Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
5. Department of Neurology, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, China