Celiac DiseaseGlutensGliadinDiet, Gluten-FreeChorionic VilliTransglutaminasesJejunumDuodenumIntestinal MucosaReticulinDermatitis HerpetiformisChorionic Villi SamplingIntestine, SmallImmunoglobulin AHLA-DQ AntigensBiopsyAutoantibodiesProlaminsAvena sativaInterleukin-18 Receptor beta SubunitMicrovilliEnterocytesDiet TherapyAtrophyIleumIntestinesHLA-DR3 AntigenIgA DeficiencyMalabsorption SyndromesJejunal DiseasesIntestinal AbsorptionHLA-DR7 AntigenEnteritisDuodenitisIntestinal DiseasesDiet, Protein-RestrictedWheat HypersensitivitySerologic TestsLactuloseEndoscopy, GastrointestinalAntibodiesDuodenoscopyImmunoglobulin GAutoimmune DiseasesDisaccharidasesSucraseIntestinal NeoplasmsPrevalenceLymphoma, T-CellSteatorrheaCase-Control StudiesCapsule EndoscopyJejunal NeoplasmsEpitheliumEnzyme-Linked Immunosorbent AssayEnteropathy-Associated T-Cell LymphomaPregnancyPlacentaColitis, MicroscopicTrophoblastsEndoscopy, Digestive System