Celiac DiseaseGlutensGliadinAntibodiesDiet, Gluten-FreeTransglutaminasesAntibody SpecificityAntibodies, ViralReticulinDermatitis HerpetiformisImmunoglobulin AAntibodies, MonoclonalAntibodies, BacterialDuodenumAutoantibodiesJejunumAntibody FormationIntestinal MucosaAntibodies, NeutralizingHLA-DQ AntigensAntibodies, Anti-IdiotypicAntibody AffinityFluorescent Antibody TechniqueBiopsyIntestine, SmallProlaminsAvena sativaBinding Sites, AntibodyImmunoglobulin GEpitopesHIV AntibodiesInterleukin-18 Receptor beta SubunitAntibodies, NeoplasmAntibodies, ProtozoanCross ReactionsAntibodies, AntinuclearImmunoglobulin MDiet TherapySerologic TestsEnzyme-Linked Immunosorbent AssayAntibodies, FungalAutoimmune DiseasesIgA DeficiencyHLA-DR3 AntigenMolecular Sequence DataFluorescent Antibody Technique, IndirectAmino Acid SequenceHLA-DR7 AntigenNeutralization TestsAtrophyMalabsorption SyndromesWheat HypersensitivityDiet, Protein-RestrictedAntigen-Antibody ReactionsAntibodies, BispecificAntigen-Antibody ComplexLactulosePrevalenceSingle-Chain AntibodiesDuodenoscopyCase-Control StudiesMice, Inbred BALB CAntibodies, BlockingEndoscopy, GastrointestinalT-LymphocytesImmunoglobulin Fab FragmentsSensitivity and SpecificityLymphoma, T-CellAntibodies, HeterophileAntibodies, CatalyticImmunoenzyme TechniquesEpitope MappingAntigensImmunologic TestsSteatorrheaDuodenitisCapsule EndoscopyJejunal NeoplasmsRabbitsHLA AntigensEnteritisAntibodies, Monoclonal, HumanizedImmunohistochemistryIntestinal NeoplasmsJejunal DiseasesHybridomasImmune SeraEnteropathy-Associated T-Cell LymphomaEnterocytesIntestinal DiseasesAntibodies, AntiphospholipidLymphocytesCell LineImmunizationCrohn DiseaseIntestinal SecretionsRecombinant ProteinsTriticumColitis, MicroscopicImmunoassay