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CSF p‐Tau correlation with combined acoustic marker. Pearson correlation showing linear association between the natural logarithm of CSF p‐Tau levels and the natural logarithm of the combined acoustic marker (r = 0.58, P = 0.007). lvPPA, logopenic variant primary progressive aphasia; naPPA, non‐fluent/agrammatic primary progressive aphasia; svPPA, semantic variant primary progressive aphasia.
