Spinal CordInfusion Pumps, ImplantableInfusions, IntravenousAngiotensin IIBlood PressureSpinal Cord InjuriesRats, Sprague-DawleyHypertensionNorepinephrineInfusions, ParenteralTime FactorsDose-Response Relationship, DrugKidneyHeart RateRats, WistarDisease Models, AnimalInfusion PumpsInjections, SpinalSpinal NervesAnesthesia, SpinalSpinal Cord DiseasesRNA, MessengerSpinal Nerve RootsSpinal Cord NeoplasmsSpinal CanalInfusions, Intra-ArterialSpinal DiseasesSpinal Cord CompressionSpinal NeoplasmsSpinal StenosisSpinal FusionSpinal InjuriesMuscular Atrophy, SpinalSpinal Cord IschemiaGanglia, SpinalMotor NeuronsParaplegiaSpineThoracic VertebraeTuberculosis, SpinalLaminectomySpinal CurvaturesHematoma, Epidural, SpinalPosterior Horn CellsCervical VertebraeLumbosacral RegionInfusions, SubcutaneousLumbar VertebraeSpinal Muscular Atrophies of ChildhoodSpinal FracturesPainSpinal Cord RegenerationInfusions, IntralesionalHyperalgesiaDogsQuadriplegiaPain MeasurementDrug Administration ScheduleTreatment OutcomeInjections, IntravenousTrigeminal Nucleus, SpinalLocomotionManipulation, SpinalReflexRecovery of FunctionAnterior Horn CellsHemodynamicsEpidural SpaceMyelographyNeuralgiaAxonsSpinal PunctureElectric StimulationCordotomyAnesthetics, LocalNeuronsCatsHindlimbNerve RegenerationMorphineMagnetic Resonance ImagingNociceptorsInsulin Infusion SystemsRegional Blood FlowInfusions, IntraventricularAfferent PathwaysAnalgesics, OpioidInsulinScoliosisBupivacaineMyelitisElectromyographyBlood GlucoseSpinal Cord StimulationParalysisGlucosePhysical StimulationNeurons, AfferentHome Infusion TherapySheep