References
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- Littmann D. Electrocardiographic phenomena associated with spontaneous pneumothorax and mediastinal emphysema. Am J Med Sci 1946; 212: 682–90
- Walston A, Brewer DL, Kitchens CS, et al. The electrocardiographic manifestations of spontaneous left pneumothorax. Ann Intern Med 1974; 80: 375–9