Joshi, Vrunda, Nyrvan Baishya, Sangramsingh Dixit, and Athavale AU. “Study of Use of Non-Invasive Ventilation in Patients of Acute Exacerbation of Chronic Obstructive Pulmonary Disease”. Asian Journal of Medical Sciences 13, no. 7 (July 1, 2022): 71–76. Accessed May 15, 2024. https://www.nepjol.info/index.php/AJMS/article/view/43342.