Intestinal DiseasesCrohn DiseaseDuodenoscopyImmunoproliferative Small Intestinal DiseaseMaltaEnteritisMalabsorption SyndromesIntestinal Diseases, ParasiticIntestinal MucosaDiverticulitisInflammatory Bowel DiseasesImmunoglobulin alpha-ChainsSprue, TropicalIntestine, SmallCampylobacter InfectionsIntestinesColitis, UlcerativeCommunicable DiseasesNod2 Signaling Adaptor ProteinDysenteryFecesCeliac DiseaseIleumIntestinal NeoplasmsCaliciviridae InfectionsGastrointestinal DiseasesGastroenteritisDiarrheaNorovirusEnglandColitisCampylobacterEnterocolitis, NecrotizingColonWalesClostridium difficileCampylobacter jejuniIntestinal AbsorptionJejunumProbioticsBiopsySpecialties, NursingReceptor-Interacting Protein Serine-Threonine Kinase 2EnterostomyAcetylmuramyl-Alanyl-IsoglutaminePaneth CellsIncidenceColon, TransverseInfant, NewbornCohort StudiesPolymerase Chain ReactionDisease Models, AnimalHistiocytosis, SinusGenetic Predisposition to DiseaseMice, Inbred C57BLAnti-Inflammatory AgentsColonoscopy