Hospital-Physician RelationsHospital CostsPhysiciansCosts and Cost AnalysisHealth Care CostsEconomics, HospitalLength of StayCost AllocationPhysician's Practice PatternsPhysicians, FamilyPhysicians, Primary CareCost ControlHospitals, UniversityHospital ChargesHospitals, TeachingCost of IllnessPhysician's RoleUnited StatesDrug CostsCost-Benefit AnalysisDiagnosis-Related GroupsInsurance, Health, ReimbursementHospital Bed Capacity, 500 and overHospitalizationRetrospective StudiesHospital Bed CapacityCost SavingsHospital PlanningHospitals, UrbanFinancial Management, HospitalHospitals, GeneralDirect Service CostsPhysicians, WomenHospitalistsMedicareAttitude of Health PersonnelInsurance, HospitalizationModels, EconomicEconomics, MedicalNursing Staff, HospitalIntermediate Care FacilitiesHospitals, ProprietaryProspective StudiesPhysician AssistantsPatient AdmissionPhysician-Patient RelationsQuality of Health CareAccountingHospitals, PediatricEconomic CompetitionAncillary Services, HospitalEmergency Service, HospitalQuestionnairesHospitals, SpecialTime FactorsAcademic Medical CentersSpecializationMedicineOwnershipHealth Services ResearchHealth ResourcesPhysicians' OfficesPatient ReadmissionHospitals, DistrictCritical PathwaysMulti-Institutional SystemsInpatientsOperating RoomsHealth Care SurveysPhysician ImpairmentOutcome Assessment (Health Care)