title: Immunological responses in rats following antigenic stimulation of Peyer's patches. I. Characteristics of the primary response.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D002859:Chromium Isotopes; D004912:Erythrocytes; D006460:Hemolysin Proteins / Q000032:analysis; D007275:Injections, Intravenous; D007421:Intestine, Small / Q000276:immunology*; D007456:Iodine Isotopes; D008198:Lymph Nodes / Q000276:immunology; D008221:Lymphoid Tissue / Q000276:immunology*; D008297:Male; D051381:Rats; D012475:Salmonella; D012756:Sheep
chemical_list: D002859:Chromium Isotopes; D006460:Hemolysin Proteins; D007456:Iodine Isotopes