title: Sensitive titration of antibodies and antigens using erythro-immunoassay.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis*; D000941:Antigens / Q000032:analysis*; D004912:Erythrocytes / Q000276:immunology; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D008024:Ligands; D011817:Rabbits; D012756:Sheep / Q000276:immunology
chemical_list: D000906:Antibodies; D000941:Antigens; D008024:Ligands