Patient ReadmissionOffice VisitsEmergency Service, HospitalReturn to WorkHouse CallsAmbulatory CareTime FactorsUnited StatesPrimary Health CareProspective StudiesRetrospective StudiesFollow-Up StudiesTreatment OutcomeQuestionnairesRehabilitation, VocationalHealth Care SurveysOutpatient Clinics, HospitalPatient SatisfactionAppointments and SchedulesInvestmentsCohort StudiesPatient Acceptance of Health CareSick LeavePatient CompliancePhysician's Practice PatternsHospitalizationPhysician-Patient RelationsAmbulatory Care Facilities