Reply to Chiang and Gupta and to Swenson <i>et al.</i>

Am J Respir Crit Care Med · 2021 · PMC7874328 · PMID 33207124

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may be significantno p-value reported

This suggests that pulmonary vascular dilatations (or intrapulmonary arterial–venous anastomoses) are not a major mechanism of hypoxemia in classical ARDS but may be significant contributors to hypoxemia in COVID-19 respiratory failure.

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