Alniazi R, Abdul Ghani S, Imtiaz N, Muhammad Ibrar, Ajmal L, Khadija N, et al. Non-Invasive Ventilation in Acute Exacerbations of COPD: A Systematic Review and Meta-Analysis of Mortality, Morbidity, and Hospital Outcomes. IJBR [Internet]. 2025 Sep. 15 [cited 2025 Dec. 9];3(9):100-6. Available from: https://ijbr.com.pk/IJBR/article/view/2171