Phetuthairung, S., and S. Kongsayreepong. “Effect of early post-extubation high-flow nasal cannula versus conventional low-flow oxygen therapy on reintubation in postoperative patients from prolonged general anesthesia at surgical ICU: A randomized clinical trial (Protocol): High versus low flow oxygen therapy after extubation in prolonged general anesthesia patients”. Clinical Critical Care, vol. 31, no. 1, May 2023, p. 2023:e0007, doi:10.54205/ccc.v31.260850.