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Literature search. (A) Flowchart of the article selection process. (B) Distribution of publication dates of the 39 BEV articles. (C) Geographic distribution of last‐authors’ affiliations of the 39 IP‐based BEV enrichment articles. AD, Alzheimer's disease; BEV, brain‐derived extracellular vesicles; DLB, Lewy body dementia; DS, Down syndrome; EV, extracellular vesicles; FTD, frontotemporal dementia; PD, Parkinson's disease; VaD, vascular dementia.
