title: The epithelium covering Peyer's patches in young milk-fed calves. An ultrastructural and enzyme histochemical investigation.
mesh_terms: D000818:Animals; D002417:Cattle / Q000033:anatomy & histology*; D004848:Epithelium / Q000201:enzymology / Q000648:ultrastructure*; D008221:Lymphoid Tissue / Q000648:ultrastructure*; D008892:Milk; D010581:Peyer's Patches / Q000648:ultrastructure*