“From Cavitation of Lung Metastases to Pneumothorax: An Amazing Response to Regorafenib in Metastatic Colorectal Cancer? A Case Report” (2020) Archives of Clinical and Medical Case Reports, 4(1), pp. 119–123. Available at: https://fortunejournals.org/ojs/index.php/acmcr/article/view/22285 (Accessed: 11 September 2026).