JejunumIleumJejunal DiseasesIntestinal AbsorptionIntestine, SmallJejunal NeoplasmsIntestinal MucosaDuodenumSymptom AssessmentIntestinal SecretionsDepressionIntestinesSucraseMicrovilliGastrointestinal MotilityQuestionnairesSeverity of Illness IndexTime FactorsColonBehavioral SymptomsTreatment OutcomeSucrase-Isomaltase ComplexPsychiatric Status Rating ScalesEnteritisSodium-Glucose Transporter 1Jejunoileal BypassLactase-Phlorizin HydrolaseAffective SymptomsFollow-Up StudiesSwineQuality of LifeProspective StudiesPrevalenceDisaccharidasesAnxietyStomachDigestive SystemEnterocytesMyoelectric Complex, MigratingDepressive DisorderPerfusionElectrolytesGastrointestinal ContentsRisk FactorsCross-Sectional StudiesDiarrheaGastrointestinal DiseasesRats, WistarStress Disorders, Post-TraumaticPhlorhizinFatigueEnteric Nervous SystemIntestinal DiseasesLongitudinal StudiesJejunostomySerous MembraneBiological TransportBlind Loop SyndromeRetrospective StudiesGastrointestinal HormonesAsthmaCecumWaterGastrointestinal Tract