Research Article
Risk Factors of Lymph Node Metastasis in Patients with Pancreatic Neuroendocrine Tumors (PNETs)
Figure 1
Flowchart of the patients selection process. A total of 8337 cases of pancreatic neuroendocrine neoplasms (PNEN) from SEER database were screened and 1956 cases were included in the final analysis.