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. 2022 Feb 10;6(3):297–306. doi: 10.1038/s41559-021-01652-4

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© The Author(s) 2022

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Fig. 2 — Circle size reflects the number of samples per site for the period of 1250–1450 ce, different colours reflect division of sites into regional clusters for the purpose of the analysis presented in Fig. 3.