VeinsSaphenous VeinPortal VeinVaricose VeinsFemoral VeinPulmonary VeinsJugular VeinsMesenteric VeinsRenal VeinsUmbilical VeinsIliac VeinHepatic VeinsPopliteal VeinSubclavian VeinSplenic VeinCerebral VeinsRetinal VeinAzygos VeinBrachiocephalic VeinsAxillary VeinRetinal Vein OcclusionVenous ThrombosisPhlebographyVenous InsufficiencyGraft Occlusion, VascularVena Cava, InferiorUltrasonography, Doppler, DuplexHuman Umbilical Vein Endothelial CellsLegVascular PatencyThrombophlebitisVascular Surgical ProceduresTreatment OutcomeEndothelium, VascularTime FactorsMolecular Sequence DataVascular GraftingCatheter AblationVenous PressureConstriction, PathologicVenae CavaeUltrasonography, Doppler, ColorMutationAnastomosis, SurgicalSclerotherapyArteriovenous Shunt, SurgicalVenous ValvesBase SequenceTissue and Organ HarvestingLiver CirculationHypertension, PortalFollow-Up StudiesCells, CulturedLigationTomography, X-Ray ComputedVaricose UlcerPortal SystemAtrial FibrillationPulmonary Veno-Occlusive DiseaseCatheterization, Central VenousPostoperative ComplicationsBlood Vessel ProsthesisVein of Galen MalformationsPolytetrafluoroethyleneDogsRetrospective StudiesThrombosisUpper Extremity Deep Vein ThrombosisArteriovenous FistulaProspective StudiesAmino Acid SequenceMuscle, Smooth, VascularFemoral ArteryEndothelial CellsCatheterization, PeripheralHeart AtriaRegional Blood FlowVena Cava, SuperiorPulmonary EmbolismPlasmidsHyperplasiaHepatic ArteryBlood Flow VelocitySclerosing SolutionsRecurrenceArteriesIschemiaLower ExtremityAngiographyLiverReoperationLaser TherapyUltrasonography, DopplerVascular DiseasesAneurysmEscherichia coliPhenotypeBudd-Chiari SyndromePopliteal ArteryAnticoagulants