title: Ultrastructural organization of some epithelial cells of digestive system in ulcer disease.
mesh_terms: D004848:Epithelium / Q000648:ultrastructure; D006801:Humans; D007421:Intestine, Small / Q000648:ultrastructure*; D008099:Liver / Q000648:ultrastructure*; D008854:Microscopy, Electron; D010179:Pancreas / Q000648:ultrastructure*; D010437:Peptic Ulcer / Q000473:pathology*; D013270:Stomach / Q000648:ultrastructure*