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. 2022 Dec 28;69(1):36–42. doi: 10.1097/MAT.0000000000001803

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Figure 3. — Time course of ventilatory variables. PaCO₂, partial pressure of arterial CO₂; PaO₂/FiO₂, ratio of arterial-to-inspiratory oxygen fraction. *P < 0.001 vs. baseline, #P < 0.05 vs. baseline.