1. Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, P. R. China
2. Department of Neurology, The First Hospital of Tsinghua University, Beijing, P. R. China
3. Department of Neurobiology, Aging Research Center and Center for Alzheimer Research, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Sweden
4. Department of Neurology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, Shandong, P. R. China
5. Shandong Provincial Clinical Research Center for Geriatric Neurological Diseases, Jinan, Shandong, P. R. China
6. Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Palermo, Italy