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AbdomenAbdomen, AcuteRadiography, AbdominalCost of IllnessCritical IllnessAbdominal InjuriesAbdominal NeoplasmsSeverity of Illness IndexLaparotomyAbdominal Wound Closure TechniquesThoraxTomography, X-Ray ComputedMental DisordersIllness BehaviorAbdominal PainAbdominal CavityAbdominal WallIntestinal ObstructionChronic DiseaseAppendicitisPneumoperitoneumMesenteric CystIntestinal PerforationPelvisFatal OutcomeFeverNegative-Pressure Wound TherapyWounds, NonpenetratingTorsion AbnormalityRetrospective StudiesAbdominal MusclesTreatment OutcomeAcute DiseaseRupture, SpontaneousTime FactorsInfluenza, HumanProspective StudiesInfant, NewbornPelvic NeoplasmsUnited StatesFoodborne DiseasesSick RoleRespiratory Tract InfectionsMentally Ill PersonsWounds, StabCompartment SyndromesQuestionnairesRisk FactorsLaparoscopyStereotypingPsychotic DisordersThoracic InjuriesGastrointestinal DiseasesColonic DiseasesBipolar DisorderRespiratory Tract DiseasesPupaIleal DiseasesOmentumAttitude to HealthPopulation SurveillanceDiarrheaWounds, PenetratingComorbidityAppendectomyPeritoneal DiseasesRadiography, ThoracicSchizophrenic PsychologyAdaptation, PsychologicalHemoperitoneumLymphangioma, CysticWounds, GunshotHospitalizationCross-Sectional StudiesAbscessAge FactorsHernia, VentralFollow-Up StudiesCatastrophic IllnessTuberculosis, SplenicCommon ColdButtocksCystsPrevalenceIntussusceptionSurgical Wound DehiscenceAppendixSensitivity and SpecificityIncidenceCohort StudiesTravelThoracic NeoplasmsSplenic RuptureWounds and InjuriesInfluenza A Virus, H1N1 SubtypeWandering SpleenPsychiatric Status Rating ScalesPneumatosis Cystoides IntestinalisReproducibility of ResultsSeasons