Plasma cell counting of IgA, IgM & IgG in the lamina propria of the duodenum.
D004386:Duodenum / Q000276:immunology* / Q000473:pathology; D006801:Humans; D007136:Immunoglobulins / Q000032:analysis*; D010950:Plasma Cells / Q000276:immunology
D007136:Immunoglobulins