title: An in vitro immune response to penicillin.
mesh_terms: D000818:Animals; D000921:Antibody-Producing Cells; D002021:Buffers; D046508:Culture Techniques; D004912:Erythrocytes / Q000276:immunology; D006241:Haptens; D006462:Hemolytic Plaque Technique; D006736:Horses; D051379:Mice; D010400:Penicillin G; D012756:Sheep; D013154:Spleen / Q000166:cytology / Q000276:immunology*
chemical_list: D002021:Buffers; D006241:Haptens; D010400:Penicillin G