Mohamed Elshewy, S.M., Hussain , R., Osman, Y.H.A., Ch , A.I., Wajid, H., Ahmed, M., Khan , A.J. and Akram, A. 2025. Effectiveness of Non-Invasive Ventilation vs. Invasive Ventilation in Acute COPD Exacerbation: A Meta-Analysis of Randomized and Observational Studies. Indus Journal of Bioscience Research. 3, 3 (Mar. 2025), 135–141. DOI:https://doi.org/10.70749/ijbr.v3i3.959.