title: Modification of HIV competitive assay to reduce frequency of false negative results.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D005188:False Negative Reactions; D006678:HIV / Q000276:immunology*; D015483:HIV Antibodies; D006801:Humans; D007124:Immunoenzyme Techniques
chemical_list: D000914:Antibodies, Viral; D015483:HIV Antibodies