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(A–E) Cross-sectional associations of plasma p-tau 181 with CSF biomarkers across AD dementia staging. Significant correlations are indicated by “*” (p < 0.05). CU–, cognitively unimpaired with negative Aβ; MCI–, mild cognitive impairment with negative Aβ; CU+, cognitively unimpaired with positive Aβ; MCI+, mild cognitive impairment with positive Aβ.
