Wang, X., J. Zhang, Y. Jiang, J. Liu, and D. Huo. “The Effect of in-Bed Cycling Combined With High Flow Nasal Cannula Treatment on Arterial Oxygen and Respiratory Dynamics in Patients With Severe Respiratory Failure: A Retrospective Study”. Pakistan Journal of Medical Sciences, Vol. 40, no. 8, Aug. 2024, doi:10.12669/pjms.40.8.9471.