Lari, Federico, Stefania Guerrini, and Fabrizio Giostra. “Use of Non-Invasive Ventilation in Acute Respiratory Failure Due to SARS-CoV-2 Pneumonia: Typing of Patients and Choice of Respiratory Support, the Role of Internal Medicine”. Italian Journal of Medicine 14, no. 3 (May 27, 2020): 119-125. Accessed December 1, 2020. https://italjmed.org/index.php/ijm/article/view/itjm.2020.1309.