Santos, Sónia, Cátia Ribeiro Santos, Joana Raquel Monteiro, Sónia Salgueiro, and Célio Fernandes. 2021. “HAMMAN’S SYNDROME (SPONTANEOUS PNEUMOMEDIASTINUM)”. Portuguese Journal of Cardiac Thoracic and Vascular Surgery 27 (1). Lisbon, Portugal:43-45. https://doi.org/10.48729/pjctvs.75.