Habera MA, Akar E, Dikis OS, Ay MO, Demirci H. Spontaneous pneumomediastinum incidence and clinical features in non-intubated patients with COVID-19. Clinics [Internet]. 2021 Sep. 20 [cited 2024 Nov. 21];76:e2959. Available from: https://periodicos.usp.br/clinics/article/view/212539