1. Lack EE. Pathology of the pancreas, gallbladder, extrahepatic biliary tract, and ampullary region. Pancreatic endocrine neoplasms. New York, Oxford University Press, 2003;323–73.
2. Lubensky I. Endocrine Pancreas. In: LiVolsi VA, Asa SL, eds. Endocrine Pathology. Philadelphia, Churchill Livingstone, 2002;205–236.
3. Kloppel G, IntVeld PA, Komminoth P, et al. The endocrine pancreas. In: Kovacs K, Asa SL, eds. Functional Endocrine Pathology, 2nd edition. Cambridge, Blackwell Scientific Publications, 1998;415–87.
4. Gumbs AA, Moore PS, Falconi M, et al. Review of the clinical, histological, and molecular aspects of pancreatic endocrine neoplasms. J Surg Oncol 2002;81:45–53.
5. Grimelius L, Hultquist GT, Stenkvist B. Cytological differentiation of asymptomatic pancreatic islet cell tumors in autopsy material. Virchows Arch 1975;365:275–88.