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. 2021 Jan 20;278(8):2891–2897. doi: 10.1007/s00405-020-06567-7

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© The Author(s) 2021

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Fig. 3 — Box and whisker plots showing change in TDI score before and after treatment with intranasal sodium citrate (right) or no treatment (left), in patients under 61 years (left) or 61 years and over (right). Error bars 5–95% interval