title: Gas in the portal venous system. Illustrated by two case reports.
authors.forename: S T
authors.initials: ST
authors.lastname: Nielsen
authors.forename: A
authors.initials: A
authors.lastname: Olsen
mesh_terms: D005740:Gases; D006801:Humans; D008297:Male; D008875:Middle Aged; D011169:Portal Vein / Q000000981:diagnostic imaging; D011859:Radiography
chemical_list: D005740:Gases