Irisawa, A EUS analysis of collateral veins inside and outside the esophageal wall in portal hypertension. [electronic resource] - Gastrointestinal endoscopy Sep 1999 - 374-80 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article ISSN: 0016-5107 Standard No.: 10.1053/ge.1999.v50.97777 doi Subjects--Topical Terms: AdultAgedChi-Square DistributionCollateral Circulation--physiologyEndosonographyEsophageal and Gastric Varices--diagnostic imagingEsophagoscopy--methodsEsophagus--blood supplyFemaleHumansHypertension, Portal--complicationsMaleMiddle AgedSensitivity and SpecificitySeverity of Illness IndexStatistics, NonparametricVeins--diagnostic imaging