Hospital ChargesLength of StayHospital CostsFees and ChargesHospitalizationEconomics, HospitalHospitals, TeachingTreatment OutcomeRetrospective StudiesHospitals, UrbanHospitals, PediatricPatient DischargeOutcome Assessment (Health Care)United StatesCosts and Cost AnalysisCritical PathwaysHealth Care CostsHealth ResourcesDiagnosis-Related GroupsHospital MortalityEmergency Service, HospitalPatient AdmissionHospitals, UniversityHospitals, GeneralTime FactorsPostoperative ComplicationsInfant, NewbornDecision TreesMarylandProspective StudiesCost-Benefit AnalysisMedicareIncidenceWounds and InjuriesRisk FactorsDatabases, FactualHospitals, RuralNursing Staff, HospitalAccidents, TrafficCohort StudiesPregnancy OutcomeMultivariate AnalysisSeverity of Illness IndexRisk AssessmentHospital Bed CapacityHospitals, SpecialHospitals, DistrictRegression AnalysisHospitalsAge FactorsHospitals, PrivateFollow-Up StudiesFinancial Management, HospitalHospital PlanningHospital Departments