Successful Laparoscopic and Endoscopic Cooperative Surgery for a Duodenal Neuroendocrine Tumor: A Case Report. acmcr [Internet]. 2020 Sep. 10 [cited 2026 Sep. 11];4(5):845-52. Available from: https://fortunejournals.org/ojs/index.php/acmcr/article/view/22389