Pneumomediastinum and Spontaneous Subcutaneous Emphysema in COVID-19 Patients Using High-Flow Nasal Cannula (HFNC). Jurnal Respirologi Indonesia, [S. l.], v. 44, n. 2, p. 113–118, 2024. DOI: 10.36497/jri.v44i2.448. Disponível em: http://www.jurnalrespirologi.org/index.php/jri/article/view/448. Acesso em: 6 jul. 2025.