title: Radioimmunodiffusion inhibition test for detection of blocking autoantibody to intrinsic factor.
mesh_terms: D000752:Anemia, Pernicious / Q000276:immunology*; D001323:Autoantibodies / Q000032:analysis*; D001345:Autoradiography; D003036:Cobalt Isotopes; D006801:Humans; D007106:Immune Sera; D007437:Intrinsic Factor; D011863:Radioimmunoassay
chemical_list: D001323:Autoantibodies; D003036:Cobalt Isotopes; D007106:Immune Sera; D007437:Intrinsic Factor