Comparison of Pressure Support Ventilation and Proportional Assist Ventilation Modes in Chronic Obstructive Pulmonary Disease Exacerbation . Ann Med Res [Internet]. 2021 May 25 [cited 2025 Apr. 19];20(3):0196-201. Available from: http://annalsmedres.org/index.php/aomr/article/view/2077