Novak, D Hepatic occlusion venography with a balloon catheter in patients with end-to side portacaval shunts. [electronic resource] - AJR. American journal of roentgenology Dec 1976 - 949-53 p. digital Publication Type: Journal Article ISSN: 0361-803X Standard No.: 10.2214/ajr.127.6.949 doi Subjects--Topical Terms: AdultAgedCatheterizationCollateral CirculationFemaleHepatic Veins--diagnostic imagingHumansLiver Cirrhosis--surgeryMaleMiddle AgedPortacaval Shunt, SurgicalRadiography