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<p xmlns="https://www.w3.org/1999/xhtml"><span class="xn-location">SHANGHAI, <span class="xn-chron">May 1, 2021 /PRNewswire/ — In June, 2020, an academic paper on patients with COVID-19 inhaling hydrogen oxygen mixed gas produced by Asclepius Meditec's Hydrogen Oxygen Generator with Nebulizer was published in the Journal of Thoracic Disease.