title: Production of HL-A antisera by planned immunisations. Three new HL-A factors.
mesh_terms: D000917:Antibody Formation; D000918:Antibody Specificity; D003601:Cytotoxicity Tests, Immunologic; D006649:Histocompatibility Antigens; D006650:Histocompatibility Testing; D006801:Humans; D007106:Immune Sera / Q000302:isolation & purification*; D007114:Immunization; D007117:Immunization, Secondary
chemical_list: D006649:Histocompatibility Antigens; D007106:Immune Sera