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. 2021 Jul 6;197(11):1010–1020. doi: 10.1007/s00066-021-01803-3

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© The Author(s) 2021, corrected publication 2021

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Fig. 1 — Evolution of respiratory parameters (SpO₂/FiO₂ [a] and PaO₂/FiO₂ [b]) in all patients with COVID-19 treated with low-dose radiation therapy classified by survivors, COVID-19 deaths and deaths from other causes