title: Evidence of a third HL-A locus.
mesh_terms: D002462:Cell Membrane / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D000939:Epitopes; D005455:Fluorescent Antibody Technique; D006649:Histocompatibility Antigens; D006801:Humans; D007106:Immune Sera; D007140:Immunoglobulin Fab Fragments; D008214:Lymphocytes / Q000276:immunology
chemical_list: D000939:Epitopes; D006649:Histocompatibility Antigens; D007106:Immune Sera; D007140:Immunoglobulin Fab Fragments