title: An essay on lymphocyte circulation and the gut.
mesh_terms: D000818:Animals; D001646:Bile / Q000276:immunology; D002454:Cell Differentiation; D002465:Cell Movement; D006168:Guinea Pigs; D007070:Immunoglobulin A; D007422:Intestines / Q000276:immunology*; D008196:Lymph / Q000166:cytology; D008198:Lymph Nodes / Q000276:immunology; D008208:Lymphatic System / Q000276:immunology*; D008214:Lymphocytes / Q000166:cytology; D008643:Mesentery / Q000276:immunology; D010581:Peyer's Patches / Q000276:immunology; D051381:Rats; D012635:Secretory Component; D012756:Sheep; D013552:Swine
chemical_list: D007070:Immunoglobulin A; D012635:Secretory Component