Bed RestHospital Bed CapacityBed OccupancyHospital PlanningBedsHead-Down TiltWeightlessness SimulationWeightlessness CountermeasuresRestSocialismCardiovascular DeconditioningHospitals, GeneralCertificate of NeedProgressive Patient CareHospital RestructuringLength of StayHospitals, PsychiatricHospitals, DistrictDemocracyPatient AdmissionHospitals, PrivateSpace FlightHospital Bed Capacity, 100 to 299Financial Management, HospitalEquipment and Supplies, HospitalHospital Bed Capacity, under 100Economics, HospitalHospitalsHospital CostsHealth Facility SizeHospitalizationHospital Shared ServicesWeightlessnessHospitals, TeachingHospital Bed Capacity, 300 to 499Patient DischargeHospitals, UniversityCatchment Area (Health)Hospitals, PublicHospitals, CommunityOrthostatic IntoleranceHealth ResourcesHospital Bed Capacity, 500 and overEmergency Service, HospitalUtilization ReviewTime FactorsDiagnosis-Related GroupsNursing Staff, HospitalLower Body Negative PressureHospitals, UrbanRetrospective StudiesEnglandHospitals, PediatricHospitals, SpecialWorkHealth ExpendituresUnited StatesPatient ReadmissionHealth Services Needs and DemandDelivery of Health CareHealth Services ResearchEfficiency, OrganizationalHospital ChargesHospital DepartmentsState MedicineEarly AmbulationHospital UnitsSupine PositionHealth Services AccessibilityMuscular AtrophyMuscle, SkeletalExercisePlasma VolumeHospital RecordsHypotension, OrthostaticGreat BritainAge FactorsModels, TheoreticalLibraries, HospitalProspective StudiesHypovolemiaSurgery Department, HospitalOutpatient Clinics, HospitalImmobilizationHospitals, CountyVascular CapacitanceAmino Acids, EssentialSpinal PunctureCross Infection