title: Ultrastructure of Peyer's patches in the normal mouse.
mesh_terms: D000818:Animals; D003094:Collagen; D003238:Connective Tissue; D003593:Cytoplasm; D007413:Intestinal Mucosa / Q000033:anatomy & histology*; D007421:Intestine, Small / Q000033:anatomy & histology*; D008214:Lymphocytes; D008221:Lymphoid Tissue / Q000166:cytology*; D008297:Male; D051379:Mice / Q000033:anatomy & histology*; D008854:Microscopy, Electron
chemical_list: D003094:Collagen