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. 2021 Feb 9;48(9):2871–2882. doi: 10.1007/s00259-021-05219-0

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© The Author(s) 2021

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Fig. 2 — Histogram graphs representing all interstitial pneumonia (a), interstitial pneumonia [¹⁸F]FDG positive (b), and interstitial pneumonia [¹⁸F]FDG negative (c) detected in the three periods in the country