Hospital ChargesLength of StayHospital CostsFees and ChargesSeverity of Illness IndexHospitalizationEconomics, HospitalHospitals, TeachingHospitals, UrbanHospitals, PediatricPatient DischargeCosts and Cost AnalysisRetrospective StudiesUnited StatesCritical PathwaysHealth Care CostsHealth ResourcesDiagnosis-Related GroupsEmergency Service, HospitalHospital MortalityPatient AdmissionHospitals, GeneralHospitals, UniversityMarylandDecision TreesTreatment OutcomeWounds and InjuriesInfant, NewbornPostoperative ComplicationsDatabases, FactualMedicareHospitals, RuralTime FactorsCost-Benefit AnalysisAccidents, TrafficNursing Staff, HospitalOutcome Assessment (Health Care)IncidenceProspective StudiesHospital Bed CapacityHospitals, SpecialHospitals, DistrictRisk FactorsMultivariate AnalysisRegression AnalysisCohort StudiesHospitalsHospitals, PrivateFinancial Management, HospitalRisk AssessmentAge FactorsHospital Planning