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Interaction of PiB and 18Flortaucipir SUVr in the prediction of plasma p‐tau‐181. Data were stratified by (A) PiB SUVR and (B) 18Flortaucipir SUVR, which were stratified according to the first quartile, which indicated low Aβ or tau PET uptake, and to the third quartile, which indicates high Aβ or tau PET uptake. PiB, Pittsburgh compound B; pTau, phosphorylated tau; SUVR, standardized uptake value ratio.
