title: Localization of pancreatic endocrine tumors by selective portal vein catheterization and radioimmunoassay.
mesh_terms: D002404:Catheterization; D006801:Humans; D010190:Pancreatic Neoplasms / Q000175:diagnosis*; D009384:Paraneoplastic Endocrine Syndromes / Q000175:diagnosis*; D011169:Portal Vein; D011863:Radioimmunoassay; D015043:Zollinger-Ellison Syndrome / Q000175:diagnosis