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. 2022 Jul 4;13:897257. doi: 10.3389/fphys.2022.897257

FIGURE 12.

FIGURE 12

Median Horowitz index (PaO2/FiO2) with Interquartile Range of patients receiving auricular Vagus Stimulation (VNS = blue) and patients only receiving Standard of Care (SOC = red) prior to, at time of study inclusion (dashed line) and up to 24h afterwards.