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Percentage of cases with highest levels of cerebral amyloid angiopathy (CAA) by APOE genotype. The frequency of the highest level of CAA pathology (CAA score of 3) in the meninges and parenchyma of the frontal, occipital, parietal, and temporal lobes in individuals with each of the more common APOE genotypes (ε2/3, ε3/3, ε3/4, and ε4/4).
