Prabhakar, Rajat, Shyam S. Jaiswal, and Ravi Prakash. “Correlation Between CT and Operative Findings in Pancreatic Cancers and Role of Pre-Operative CA19-9 Values in Predicting Metastatic Disease”. International Surgery Journal 8, no. 4 (March 26, 2021): 1247–1252. Accessed February 16, 2025. https://www.ijsurgery.com/index.php/isj/article/view/7202.