Colitis, CollagenousColitis, UlcerativeColitisColitis, MicroscopicCollagen DiseasesColitis, LymphocyticColonMesalamineCrohn DiseaseSulfasalazineIntestinal MucosaColonoscopyDiarrheaRectumColitis, IschemicGastrointestinal AgentsBudesonideInflammatory Bowel DiseasesLoperamideDextran SulfateSigmoidoscopyColestipolAntidiarrhealsAnti-Inflammatory AgentsLymphocytosisProctocolectomy, RestorativeProtein-Losing EnteropathiesTrinitrobenzenesulfonic AcidAminosalicylic AcidsColectomyCeliac DiseasePouchitisBiopsyCholestyramine ResinIleostomyFrozen SectionsCollagenColonic PouchesEnemaJejunumAdministration, RectalCholangitis, SclerosingIntestinal Absorption