Media type: E-Article Title: Does inspiration of exhaled CO2 explain improved oxygenation with a face mask plus high-flow nasal cannula oxygen in severe COVID-19 infection? Contributor: Swenson, Erik R. imprint: Springer Science and Business Media LLC, 2021 Published in: Critical Care Language: English DOI: 10.1186/s13054-021-03771-7 ISSN: 1364-8535 Keywords: Critical Care and Intensive Care Medicine Origination: Footnote: Access State: Open Access