Bam, N.; Shrestha, T. N.; Das, S. K.; Shrestha, B. Effect of Timing and Duration of Non-Invasive Ventilation on Outcomes in Acute Exacerbation of COPD: A Prospective Study from Nepal. Birat J. Health Sci. 2025, 10 (3), 85-90. https://doi.org/10.62065/bjhs760.