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. 2022 Apr 1;269(8):4363–4374. doi: 10.1007/s00415-022-11071-5

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Fig. 2 — Categorization as “CCAS absent/possible/probable/definite”. Percentage of patients and matched controls categorized as CCAS absent (no item failed), possible (one failed item), probable (two failed items) or definite (three or more failed test items) based on original cut-off values³