Niraj Bam, et al. “Impact of Demographic and Lifestyle Factors on the Outcome of Non-Invasive Positive Pressure Ventilation in Acute Exacerbation of COPD: An Observational Study”. Journal of Universal College of Medical Sciences, vol. 13, no. 03, Dec. 2025, pp. 24-28, doi:10.3126/jucms.v13i03.88822.