title: Selective mesenteric vein catheterization and plasma serotonin determination in patients with carcinoid tumors.
mesh_terms: D000328:Adult; D000368:Aged; D002276:Carcinoid Tumor / Q000175:diagnosis*; D002404:Catheterization / Q000379:methods*; D005260:Female; D006801:Humans; D007078:Ileal Neoplasms / Q000175:diagnosis; D008297:Male; D008642:Mesenteric Veins; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D012701:Serotonin / Q000097:blood*
chemical_list: D012701:Serotonin