Fig. 1

Flowchart. MCI-LB, mild cognitive impairment with Lewy bodies; PD-MCI, Parkinson’s disease with mild cognitive impairment; DLB, dementia with Lewy bodies; PDD, Parkinson’s disease dementia; MRI, magnetic resonance imaging; NPI, the Neuropsychiatric Inventory; UPDRS-III, Unified Parkinson’s Disease Rating Scale-Part III; APOE, Apolipoprotein E; CMBs, cerebral microbleeds