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Is high-flow nasal cannula oxygenation more effective than noninvasive ventilation or conventional oxygen therapy in treating acute hypoxemic respiratory failure in COVID-19 patients?. Acta Med Philipp [Internet]. 2020 Aug. 20 [cited 2025 Apr. 16];. Available from: https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/1870