Pneumomediastinum and subcutaneous cervical emphysema: unusual complications of childhood pneumonia. NIGERIAN JOURNAL OF PAEDIATRICS, [S. l.], v. 41, n. 1, p. 81–83, 2024. Disponível em: http://njpaediatrics.com/index.php/njp/article/view/376.. Acesso em: 21 sep. 2026.