Mujaković, A. ., T. . Kovačević, . E. . Begić, . A. . Fajkić, G. . Barić, A. . Jamakosmanović, and P. . Kovačević. “High Flow Nasal Cannula Versus Noninvasive Positive Pressure Ventilation As Initial Respiratory Support in Patients With Chronic Obstructive Pulmonary Disease and Covid-19: Exploratory Analysis in Two Intensive Care Units”. Acta Medica Academica, vol. 51, no. 3, Mar. 2023, pp. 199-08, doi:10.5644/ama2006-124.389.