title: Specificity of the in vitro response of antigen-sensitive units to two antigens.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000918:Antibody Specificity; D000921:Antibody-Producing Cells; D000941:Antigens; D002454:Cell Differentiation; D002478:Cells, Cultured; D002645:Chickens; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D051379:Mice; D012756:Sheep; D013154:Spleen / Q000166:cytology / Q000276:immunology
chemical_list: D000941:Antigens