1. An analysis of 8,305 cases of carcinoid tumors;Modlin;Cancer,1997
2. Carcinoid tumors: frequency in a defined population during a 12-year period;Berge;Acta Pathol. Microbiol. Scand.,1976
3. 3Jensen, R.T. 1999. Natural history of digestive endocrine tumors. In M. Mignon & J.F. Colombel, Eds.: 192-219. Advances in the Pathophysiology and Management of Inflammatory Bowel Diseases and Digestive Endocrine Tumors. John Libbey Eurotext Publishing. Paris.
4. Malignant carcinoid tumors; an analysis of 103 patients with regard to tumor localization, hormone production and survival;Norheim;Ann. Surg.,1987
5. Malignant neuroendocrine tumors;Tiensuu Jansson;Cancer Chemother. Biol. Response Modif.