Lymphocyte subset composition of the canine intraepithelial compartment. Flow cytometric analysis of cell surface marker expression of mesenteric lymph node cells (MLN) and IEL from the small (SB) and large bowel (LB) from 15 healthy adult Beagle dogs showing analysis of CD4⁺ and CD8⁺ lymphocyte subsets (A), TCRαβ and TCRγδ subsets (B), and CD8αβ⁺ and CD8αα⁺ subsets (C). Mean values ± SD of n = 15 are shown. Numbers were normalized to CD45⁺ cells.