title: Cytochemical and ultrastructural observations on the argentaffin and argyrophil cells of the gastro-intestinal tract in mammals, and their place in the APUD series of polypeptide-secreting cells.
mesh_terms: D000818:Animals; D002802:Cholinesterases / Q000032:analysis; D002838:Chromaffin System / Q000166:cytology*; D004295:Dihydroxyphenylalanine / Q000378:metabolism; D004285:Dogs; D004386:Duodenum; D004950:Esterases / Q000032:analysis; D005954:Glucosephosphate Dehydrogenase / Q000032:analysis; D006168:Guinea Pigs; D006651:Histocytochemistry; D006654:Histology, Comparative; D007082:Ileum; D007421:Intestine, Small / Q000033:anatomy & histology*; D007583:Jejunum; D051379:Mice; D008854:Microscopy, Electron; D008856:Microscopy, Fluorescence; D009249:NADP / Q000032:analysis; D010455:Peptides / Q000378:metabolism; D051381:Rats; D013270:Stomach / Q000033:anatomy & histology*
chemical_list: D010455:Peptides; D009249:NADP; D004295:Dihydroxyphenylalanine; D005954:Glucosephosphate Dehydrogenase; D004950:Esterases; D002802:Cholinesterases