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Levels of p‐tau231 in (a) all patients, (b) AD, MCI patients and HC, (c) AD and MCI patients, and (d) AD patients with the MAPT rs2471738 genotype. Boxes represent the median, the 25th and 75th percentiles, and bars indicate the range of data distribution. Circles represent outliers, and asterisks represent extreme data points. *p < 0.05
