1. Baxter-Grillo, D. L.: Enzyme histochemistry and hormones of the developing gastrointestinal tract. Enterochromaffin cells, their possible products glucagon, 5-Hydroxytryptamine, and the relation of monoamine oxidase. Histochemie 21, 129?135 (1970).
2. Falkmer, S., BoQuist, L., Foa, P., Grillo, T. A. I., Baxter-Grillo, D. L., SoDoyez, Jean-Claude, SoDoyez Gottaux, F., Whitty, A. J.: Some histological, histochemical and ultrastructural studies and hormone assays in a transplantable islet carcinoma of the Syrian Hamster. Acta path, microbiol. scand. 77, 551?577 (1969).
3. Grillo, T. A. I.: The ontogeny of insulin secretion in the chick embryo. J. Endocr. 22, 285?292 (1961).
4. Grillo, T. A. I.: The occurrence of insulin in the pancreas of foetuses of some rodents. J. Endocr. 31, 67?73 (1964).
5. Hers, H. G.: Études enzymatiques sur fragments hapatique; application à la classification des glycogenase. Rev. intern. Hepat. 9, 35?55 (1959).