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. 2021 Jul 3;269(3):1375–1385. doi: 10.1007/s00415-021-10689-1

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© The Author(s) 2021

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Fig. 2 — Symptom distribution of PPA subtypes over time. svPPA Semantic variant primary progressive aphasia, nfvPPA Nonfluent variant primary progressive aphasia, lvPPA Logopenic variant primary progressive aphasia. *p < 0.05, **p < 0.01