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. 2021 Sep 29;8:253. doi: 10.1038/s41597-021-01031-5

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© The Author(s) 2021

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Fig. 3 — Data Quality Breakdown by source type. Chart denotes the reliability of data per country in the COBAP dataset (through Dec 2020). Countries whose data use only governmental sources, we rank as “very sure” (blue). For those we could not find governmental sources but found reliable proxies, we rank in the dataset as “sure” (orange). Countries where we could not find governmental or proxy sources for, we rank as “less sure” with a breakdown of the sources used (grey).