title: Concentrations of the secretory immunoglobulin A in intestines of piglets.
mesh_terms: D000367:Age Factors; D000818:Animals; D007071:Immunoglobulin A, Secretory / Q000032:analysis*; D007422:Intestines / Q000276:immunology*; D013552:Swine / Q000276:immunology*
chemical_list: D007071:Immunoglobulin A, Secretory