title: Jerne plaque assay for antibody-forming spleen cells: some technical modifications.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000921:Antibody-Producing Cells; D006168:Guinea Pigs; D006462:Hemolytic Plaque Technique; D007106:Immune Sera; D008722:Methods; D051379:Mice; D012756:Sheep; D013154:Spleen / Q000166:cytology / Q000276:immunology*
chemical_list: D007106:Immune Sera