title: H-2 dependence of co-operation between T and B cells in vivo.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens; D001402:B-Lymphocytes / Q000276:immunology*; D003601:Cytotoxicity Tests, Immunologic; D004912:Erythrocytes / Q000276:immunology; D006386:Hemagglutination Tests; D006649:Histocompatibility Antigens; D008198:Lymph Nodes / Q000166:cytology; D051379:Mice; D012756:Sheep / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000941:Antigens; D006649:Histocompatibility Antigens