Antibodies, HeterophileFalse Positive ReactionsImmunoassayAntibodiesAntibody SpecificityAntibodies, ViralRNA InterferenceAntibodies, BacterialAntibodies, MonoclonalAntibody FormationAntibodies, NeutralizingAntibody AffinityFluorescent Antibody TechniqueAntibodies, Anti-IdiotypicBinding Sites, AntibodyHIV AntibodiesEpitopesAntibodies, NeoplasmAntibodies, ProtozoanAntibodies, AntinuclearCross ReactionsMolecular Sequence DataMicroscopy, InterferenceImmunoglobulin MAutoantibodiesAntibodies, FungalAmino Acid SequenceNeutralization TestsAntigen-Antibody ReactionsMice, Inbred BALB CCell LineAntibodies, BispecificSingle-Chain AntibodiesAntibodies, BlockingImmunoglobulin GRNA, Small InterferingAntigen-Antibody ComplexImmunoglobulin Fab FragmentsAntibodies, CatalyticRabbits