Outpatient Clinics, HospitalAmbulatory CareAmbulatory Care FacilitiesAmbulatory Surgical ProceduresTreatment OutcomeRetrospective StudiesProspective StudiesHospitalizationUnited StatesReferral and ConsultationQuestionnairesHealth Care CostsAppointments and SchedulesCross-Sectional StudiesInpatientsPatient SatisfactionFollow-Up StudiesTime FactorsSeverity of Illness IndexSubstance Abuse Treatment CentersRisk FactorsDrug UtilizationPatient ComplianceCosts and Cost AnalysisQuality of LifeSurgicentersPrevalenceCohort StudiesAftercareHealth Care SurveysOffice VisitsPsychiatric Status Rating ScalesCost-Benefit AnalysisHealth ExpendituresHospitals, UniversityHospitals, VeteransContinuity of Patient CareUrology Department, HospitalAnti-Bacterial AgentsOutcome Assessment (Health Care)Age FactorsVeteransMedicineComorbidityEmergency Service, HospitalPhysician's Practice PatternsPatient Education as TopicBrazilAmbulatory Care Information SystemsUnited States Department of Veterans AffairsPilot ProjectsUtilization ReviewPatient DischargeMental DisordersChronic DiseaseReproducibility of ResultsDay CarePatient DropoutsMedicareHysteroscopyPrimary Health CareSubstance-Related DisordersMental Health ServicesHealth Services AccessibilityMedical RecordsHome Infusion TherapyDrug CostsPsychometricsHealth Services ResearchSchizophreniaFeasibility StudiesDepressionSpecializationDrug PrescriptionsHealth ServicesCost of IllnessQuality of Health CareLogistic ModelsPatient Acceptance of Health CareInsurance Claim ReviewDouble-Blind MethodGermanyHospital CostsPain MeasurementGuideline AdherenceSchizophrenic PsychologyPharmacy Service, HospitalMedical Records Systems, ComputerizedIncidenceCost SavingsDepressive Disorder, MajorEnglandSocioeconomic FactorsAnesthesia, DentalSex FactorsFeverPainFamily PracticeHospitals, TeachingRecurrence