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Figure 1 (A–C) Scatterplots of individual levels of CSF amyloid beta 1–40 (Aβ40) (A), amyloid beta 1–42 (Aβ42) (B) and the Aβ42/Aβ40 ratio in patients with frontotemporal lobar degeneration (FTLD) and Alzheimer's disease (AD) and in controls. Significant differences are indicated. Horizontal lines represent median values.
