title: Complementation between I region genes is revealed by a hybridoma anti-Ia antibody.
mesh_terms: D000818:Animals; D001201:Ascites / Q000276:immunology; D002999:Clone Cells / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D005816:Genetic Complementation Test; D006183:H-2 Antigens; D000949:Histocompatibility Antigens Class II / Q000502:physiology*; D006822:Hybrid Cells / Q000276:immunology; D008214:Lymphocytes / Q000276:immunology; D051379:Mice; D008811:Mice, Inbred DBA; D013154:Spleen / Q000166:cytology
chemical_list: D006183:H-2 Antigens; D000949:Histocompatibility Antigens Class II