PB, Sryma, Saurabh Mittal, Karan Madan, Anant Mohan, Pawan Tiwari, Vijay Hadda, Ravindra Mohan Pandey, and Randeep Guleria. “Awake Prone Positioning in Non-Intubated Patients for the Management of Hypoxemia in COVID-19: A Systematic Review and Meta-Analysis”. Monaldi Archives for Chest Disease 91, no. 2 (April 22, 2021). Accessed June 24, 2021. https://monaldi-archives.org/index.php/macd/article/view/1623.