Machado, N.O. et al. 2011. Large Duodenal Gastrointestinal Stromal Tumor Presenting with Acute Bleeding Managed by a Whipple Resection. A Review of Surgical Options and the Prognostic Indicators of Outcome. JOP. Journal of the Pancreas. 12, 2 (Mar. 2011), 194–199. DOI:https://doi.org/10.6092/1590-8577/3354.