Celiac DiseaseGlutensGliadinDiet, Gluten-FreeTransglutaminasesReticulinDermatitis HerpetiformisDuodenumImmunoglobulin AJejunumIntestinal MucosaHLA-DQ AntigensBiopsyIntestine, SmallAutoantibodiesProlaminsAvena sativaInterleukin-18 Receptor beta SubunitDiet TherapyHLA-DR3 AntigenIgA DeficiencyPrevalenceHLA-DR7 AntigenAtrophyMalabsorption SyndromesSerologic TestsDiet, Protein-RestrictedWheat HypersensitivityLactuloseDuodenoscopyAntibodiesEndoscopy, GastrointestinalImmunoglobulin GCase-Control StudiesAutoimmune DiseasesLymphoma, T-CellSteatorrheaDuodenitisCapsule EndoscopyJejunal NeoplasmsEnzyme-Linked Immunosorbent AssayJejunal DiseasesIntestinal NeoplasmsEnteropathy-Associated T-Cell LymphomaEnteritisSwedenEnterocytesIntestinal DiseasesColitis, MicroscopicEndoscopy, Digestive SystemPatient Compliance