Polikarpova, Aleksandra, Ngee-Soon Lau, and David J. Coker. “Spontaneous Pneumomediastinum: Case Series and Literature Review”. International Surgery Journal 11, no. 4 (March 11, 2024): 606–611. Accessed October 3, 2025. https://www.ijsurgery.com/index.php/isj/article/view/10286.