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. 2022 Jun 3;439:120315. doi: 10.1016/j.jns.2022.120315

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Fig. 3 — Results of cluster analysis.

Top panel, clusters on the set of five neurological symptoms. Blue cluster (long-COVID type 2) = symptoms of PNS involvement; red cluster (long-COVID type 1) = memory disturbances, psychological impairment, headache, anosmia and ageusia. Bottom panel, centroid profiles of the two clusters. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)