Zia Ullah Khan, Aftab Khattak, & Khalid Usman. (2025). Clinical Outcomes of High-Flow Nasal Oxygen Therapy in Acute Respiratory Failure in the Emergency Department: A Retrospective Observational Study.: Original Article . Pakistan Journal of Advances in Medicine and Medical Research , 3(2), 60–64. https://doi.org/10.69837/pjammr.v3i2.71