title: What do western blot indeterminate patterns for human immunodeficiency virus mean in EIA-negative blood donors.
mesh_terms: D001782:Blood Donors; D001803:Blood Transfusion; D015153:Blotting, Western; D004797:Enzyme-Linked Immunosorbent Assay; D015483:HIV Antibodies / Q000032:analysis*; D006679:HIV Seropositivity; D006801:Humans
chemical_list: D015483:HIV Antibodies