Spontaneous pneumomediastinum incidence and clinical features in non-intubated patients with COVID-19. Clinics, [S. l.], v. 76, p. e2959, 2021. DOI: 10.6061/clinics/2021/e2959. Disponível em: https://journals.usp.br/clinics/article/view/212539.. Acesso em: 16 jun. 2024.