Post hoc analysis of interleukin (IL)‐13 mRNA duodenal villus, subvillus, epithelial, and lamina propria average expression scores in German Shepherd dogs (GSDs) with chronic enteropathy (CE), non‐GSDs with CE, and healthy Beagle control dogs using RNA in situ hybridization. P‐values obtained from post hoc analysis using Tukey's Honest Significant Difference test after 1‐way analysis of variance testing of IL‐13 mRNA duodenal villus, subvillus, epithelial, and lamina propria average expression scores in GSDs with CE (N = 10), non‐GSDs with CE (N = 10), and healthy Beagle control dogs (N = 8)