CapillariesElectrophoresis, CapillaryCapillary ActionCapillary PermeabilityHemangioma, CapillaryCapillary ResistanceOximetryOxygenCapillary ElectrochromatographyCapillary Leak SyndromeMicrocirculationRetinal VesselsCapillary FragilityOxyhemoglobinsTransferrinKineticsHemoglobinsNeovascularization, PhysiologicCapillary TubingAnoxiaOxygen ConsumptionSpectroscopy, Near-InfraredTime FactorsPartial PressureEndothelium, VascularCorrosion CastingPulmonary CirculationKidney GlomerulusBlood Gas AnalysisRegional Blood FlowNailsMicroscopic AngioscopyFerritinsHemodynamicsReproducibility of ResultsIronPulmonary Wedge PressurePericytesMicroscopy, ElectronBlood Flow VelocityAltitudeVenulesChromatography, GasCarbon DioxideHematocritHydrogen-Ion ConcentrationBlood Gas Monitoring, TranscutaneousArteriolesMuscle, SkeletalOxygen Inhalation TherapyEndotheliumBasement MembraneBrainIschemiaBlood-Brain BarrierLungCerebrovascular CirculationBlood PressureEndothelial CellsVascular Endothelial Growth Factor AErythrocytesSensitivity and SpecificityElectrophoresis, MicrochipCattleModels, BiologicalMicroscopy, VideoVeinsRats, Sprague-DawleyHemochromatosisGlycocalyxPerfusionTemperatureCells, CulturedRabbitsDivingRespirationSkinRats, WistarRats, Inbred StrainsPulmonary Diffusing CapacityDogsMicroscopy, Electron, ScanningBlood Specimen CollectionGranuloma, PyogenicMonitoring, PhysiologicKidneyPulmonary EdemaMathematicsRetinal VeinDisease Models, AnimalMicrovesselsBinding, CompetitiveVascular ResistanceNeovascularization, PathologicBlood-Air BarrierPulmonary Gas ExchangeBlood VesselsBuffersReference ValuesSpin Labels