Outpatient Clinics, HospitalAmbulatory CareEmergency Service, HospitalOffice VisitsAmbulatory Care FacilitiesPhysicians' OfficesHospital DepartmentsOutpatientsDental DepositsOphthalmologyReferral and ConsultationHealth Care SurveysDiagnosisEnglandAppointments and SchedulesUnited StatesHospitals, TeachingMedicinePediatric NursingIndiaHospitals, GeneralProspective StudiesWounds and InjuriesPatient SatisfactionSpecializationCross-Sectional StudiesRetrospective StudiesQuestionnairesTertiary Care CentersTime FactorsTreatment OutcomeFamily PracticeMedical RecordsFollow-Up StudiesEthiopiaPrevalenceHospitalizationAge FactorsHealth Care CostsIntensive Care UnitsHealth Services AccessibilitySex FactorsNigeriaPhysician's Practice PatternsNetherlandsSeverity of Illness IndexInfant, NewbornRisk FactorsSouth AfricaSensitivity and SpecificityGreat BritainPatient Acceptance of Health CareChronic DiseaseLogistic ModelsReproducibility of ResultsQuality of LifeSocioeconomic FactorsAmbulatory Surgical ProceduresAnti-Bacterial AgentsUnited States Department of Veterans AffairsPredictive Value of TestsHospital UnitsRadiology Department, HospitalEmergenciesTriageEmergency Medical ServicesEmergency MedicineHospitals, UniversityUrology Department, HospitalPatient AdmissionPublic Health AdministrationUnited States Department of DefenseEmergency TreatmentMedical Staff, HospitalPathology Department, HospitalHospitals, UrbanLength of StayIntensive Care Units, NeonatalCohort StudiesInpatientsPatient DischargeVeteransEmergency NursingCosts and Cost AnalysisHospitals, VeteransMedical AuditUtilization ReviewOutcome Assessment (Health Care)Coronary Care UnitsGuideline AdherencePilot ProjectsIntensive Care Units, PediatricIncidencePopulation SurveillanceHealth Services ResearchAcademic Medical CentersChest PainAnesthesia Department, HospitalData CollectionAcute Disease