[The immunologic system of the small intestine].
D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D007421:Intestine, Small / Q000166:cytology / Q000276:immunology*; D010581:Peyer's Patches / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology
D007070:Immunoglobulin A
Tunntarmens immunologiska system