1. Hattori M, Fucase M, Yoshimi H: Ectopic production of human chorionic gonadotropin in malignant tumors. Cancer 42: 2328–2333, 1978.
2. Yoshimoto Y, Wolfsen AR, Odell WD: Glycosylation, a variable in the production of hCG by cancers. Am J Med 67: 414–420, 1979.
3. Rodenburg CJ, Nieuwenhuijzen Kruseman AC, de Maaker HA, Fieuren GJ, van Oosterom AD: Immunocytochemical localization and chromatografic characterization of human chorionic gonadotrophin in a bladder carcinoma. Arch Pathol Lab Med 109: 1046–1048, 1985.
4. Asa SL, Kovacs K, Killinger DW, Marcon N, Platts M: Pancreatic islet cell carcinoma producing gastrins, ACTH, β-endorphine, somatostatin and calcitonin. Am J Gastroentrology 74: 30–35, 1980.
5. Heitz PU, Karper M, Polak JM, Kloppel S: Pancreatic endocrine tumors: immunocytochemical analysis of 125 tumors. Human Pathology 13: 263–271, 1982.