1. Department of Geriatrics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
2. Department of Geriatric Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
3. Anti-aging Monitoring Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
4. Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin, PR China
5. Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
6. Department of Biochemistry and Molecular Biology, Jining Medical University, Jining, Shandong, PR China
7. Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, PR China
8. Rehabilitation Ward II, Shandong Provincial Third Hospital, Jinan, Shandong, PR China