title: Production of antibody to sheep red blood cells by human tonsil cells in vitro.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D001402:B-Lymphocytes / Q000276:immunology; D002478:Cells, Cultured; D004912:Erythrocytes / Q000276:immunology; D004926:Escherichia coli / Q000276:immunology; D006462:Hemolytic Plaque Technique; D006801:Humans; D008070:Lipopolysaccharides; D008214:Lymphocytes / Q000276:immunology*; D014066:Palatine Tonsil / Q000276:immunology*; D011135:Polysaccharides, Bacterial; D012756:Sheep / Q000276:immunology
chemical_list: D008070:Lipopolysaccharides; D011135:Polysaccharides, Bacterial