“Pneumomediastinum and Spontaneous Subcutaneous Emphysema in COVID-19 Patients Using High-Flow Nasal Cannula (HFNC)”. Jurnal Respirologi Indonesia 44, no. 2 (April 30, 2024): 113–118. Accessed July 6, 2025. http://www.jurnalrespirologi.org/index.php/jri/article/view/448.