Balan, Divya, Shashibhushan Bangalore Lakshamanamurthy, and Deepa Anekal Subbarayappa. “Predictors of Failure of Non-Invasive Ventilation in Severe COVID-19 Patients”. International Journal of Research in Medical Sciences 10, no. 5 (April 26, 2022): 1151–1156. Accessed July 25, 2024. https://www.msjonline.org/index.php/ijrms/article/view/10708.