Purohit, Swetabh, Manu Madan, Rohit Kumar, Rajnish Kaushik, Pranav Ish, Mahendran AJ, Shibdas Chakrabarti, Neeraj Kumar Gupta, and Nitesh Gupta. “Comparison of Immediate Withdrawal and Stepwise Reduction in Duration of Non-Invasive Ventilation in Chronic Obstructive Pulmonary Disease Patients Presenting With Acute Hypercapnic Respiratory Failure”. Monaldi Archives for Chest Disease (October 12, 2023). Accessed May 19, 2024. https://www.monaldi-archives.org/macd/article/view/2755.