LigationPortal VeinHypertension, PortalVeinsFemoral VeinLiver CirculationSplanchnic CirculationLiver RegenerationHepatectomySaphenous VeinVaricose VeinsPulmonary VeinsJugular VeinsMesenteric VeinsRenal VeinsIliac VeinUmbilical VeinsHepatic VeinsPopliteal VeinSplenic VeinSubclavian VeinCerebral VeinsBrachiocephalic VeinsRetinal VeinAzygos VeinAxillary VeinRetinal Vein OcclusionVenous ThrombosisVenous InsufficiencyPhlebographyDNA Ligases