1. Secretory tumors of the pancreas;Delvalle,1990
2. Common cytochemical and ultrastructural characteristics of cells producing polypeptide hormones, the characteristics of cells producing polypeptide hormones (the APUD series) and their relevance to thyroid and ultimobranchial C cells and calcitonin;Pearse,1968
3. Islet cell precursors are neurons;Pearse;Nature,1982
4. Endocrine manifestations of neoplasia;Frohman,1991
5. Islet cell tumors of the pancreas;Vessilopoulou-Sellin;Endocrinol Metab Clin North Am,1994