1. Department of General Practice XuanWu Hospital of Capital Medical University Beijing China
2. Department of General Surgery XuanWu Hospital of Capital Medical University Beijing China
3. Department of Radiological Sciences, Division of Clinical Neuroscience, Queen's Medical Centre University of Nottingham Nottingham UK
4. School of Biomedical Engineering Hainan University Haikou China
5. Department of Neurology XuanWu Hospital of Capital Medical University Beijing China
6. National Clinical Research Center for Geriatric Disorders XuanWu Hospital of Capital Medical University Beijing China
7. Center of Alzheimer's Disease, Beijing Institute for Brain Disorders Beijing China