Saeed, Shahzeb, et al. “When Immunity Backfires: Pembrolizumab-Induced Bilateral Pneumothorax in a Patient With Metastatic HPV-Associated Oropharyngeal Carcinoma”. European Journal of Case Reports in Internal Medicine, vol. 12, no. 11, Oct. 2025, https://doi.org/10.12890/2025_005839.