{Reference Type}: Letter {Title}: Probing the efficacy of high-flow nasal cannula in the treatment of acute exacerbations of COPD with acute-moderate hypercapnic respiratory failure. {Author}: Pantazopoulos I;Mavrovouni G; {Journal}: Crit Care {Volume}: 28 {Issue}: 1 {Year}: 2024 Aug 5 {Factor}: 19.334 {DOI}: 10.1186/s13054-024-05050-7