SclerotherapySclerosing SolutionsEsophageal and Gastric VaricesGastrointestinal HemorrhageSplenorenal Shunt, SurgicalEsophagoscopyPortasystemic Shunt, SurgicalHypertension, PortalLiver CirrhosisEndoscopy, GastrointestinalEndoscopySodium Tetradecyl SulfateRecurrenceVaricose VeinsVascular MalformationsProspective StudiesStockings, CompressionEnbucrilateHemostasis, EndoscopicVenous InsufficiencySaphenous VeinVaricoceleVeinsLigationKidney Diseases, CysticTissue AdhesivesVaricose UlcerArteriovenous MalformationsUltrasonography, Interventional