pid type title authors mentors source_title published_date url doi isbn issn eissn medri:5769 "journal article" "Subtypes and clinical significance of common bile duct varices in portal vein thrombosis: diagnosis and follow-up by Doppler US and EUS" "Grgurević, Ivica; Kujundžić, Milan; Banić, Marko; Kušec, Rajko; Bokun, Tomislav; Vukelić-Marković, Mirjana; Bogdanović, Zoran; Lukić, Anita; Brkljačić, Boris"