title: Studies on the development of background plaque-forming cells.
mesh_terms: D000818:Animals; D000921:Antibody-Producing Cells / Q000276:immunology*; D000961:Antilymphocyte Serum / Q000494:pharmacology; D001202:Ascitic Fluid / Q000166:cytology; D001402:B-Lymphocytes / Q000276:immunology; D002448:Cell Adhesion; D002450:Cell Communication; D002469:Cell Separation; D002478:Cells, Cultured; D005898:Glass; D006462:Hemolytic Plaque Technique; D051379:Mice; D008819:Mice, Nude; D009757:Nylons; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D000961:Antilymphocyte Serum; D009757:Nylons