title: Difficult portal vein access in transjugular intrahepatic portosystemic shunt placement.
authors.forename: S R
authors.initials: SR
authors.lastname: Kerns
mesh_terms: D002404:Catheterization / Q000295:instrumentation; D004867:Equipment Design; D006503:Hepatic Veins; D006801:Humans; D009339:Needles; D011169:Portal Vein; D011170:Portasystemic Shunt, Surgical / Q000295:instrumentation / Q000379:methods*; D011677:Punctures / Q000295:instrumentation