Hospital DepartmentsMassachusettsHospitals, GeneralBostonCaregiversRetrospective StudiesHospitalsFranceTreatment OutcomeQuestionnairesHospitals, DistrictEmergency Service, HospitalMedicineSpecializationSpecialties, SurgicalHospitals, SpecialHospitals, TeachingHospitals, UniversityPsychiatric Department, HospitalUnited StatesEnglandHospital CostsLength of StayNursing Staff, HospitalHospitals, UrbanHospitalizationMedical AuditPatient AdmissionOutpatient Clinics, HospitalHospital Bed CapacityProspective StudiesHospitals, PediatricSurgery Department, HospitalSpecialties, Nursing