CapillariesVeinsElectrophoresis, CapillarySaphenous VeinPortal VeinVaricose VeinsFemoral VeinPulmonary VeinsCapillary ActionJugular VeinsCapillary PermeabilityMesenteric VeinsUmbilical VeinsHemangioma, CapillaryCapillary ResistanceRenal VeinsIliac VeinHepatic VeinsPopliteal VeinCapillary ElectrochromatographySubclavian VeinCapillary Leak SyndromeCerebral VeinsSplenic VeinRetinal VeinAzygos VeinBrachiocephalic VeinsMicrocirculationRetinal Vein OcclusionRetinal VesselsAxillary VeinCapillary FragilityEndothelium, VascularNeovascularization, PhysiologicVenous ThrombosisCapillary TubingRegional Blood FlowVenous InsufficiencyEndothelial CellsTime FactorsPhlebographyCorrosion CastingKidney GlomerulusIschemiaBlood Flow VelocityNailsMicroscopic AngioscopyEndotheliumHuman Umbilical Vein Endothelial CellsPericytesVascular Endothelial Growth Factor AMicroscopy, ElectronPulmonary CirculationPulmonary Wedge PressureLegVena Cava, InferiorGraft Occlusion, VascularUltrasonography, Doppler, DuplexVenous PressureCells, CulturedBasement MembraneChromatography, GasArteriolesVascular PatencyHemodynamicsDogsMicroscopy, VideoBlood-Brain BarrierThrombophlebitisVenulesElectrophoresis, MicrochipBlood VesselsVascular Surgical ProceduresGlycocalyxReproducibility of ResultsTreatment OutcomeNeovascularization, PathologicRats, Sprague-DawleyMuscle, SkeletalImmunohistochemistryPerfusionDisease Models, AnimalRabbitsLungMicroscopy, Electron, ScanningLigationBlood Specimen CollectionArteriesRats, WistarOxygenGranuloma, PyogenicVascular GraftingBlood PressureVenae CavaeConstriction, PathologicHematocritSensitivity and SpecificityPulmonary Veno-Occlusive DiseaseCattleSkin