title: Esophageal roentgenography using tantalum paste.
mesh_terms: D004932:Esophageal and Gastric Varices / Q000000981:diagnostic imaging*; D004947:Esophagus / Q000000981:diagnostic imaging*; D006801:Humans; D011859:Radiography; D013635:Tantalum
chemical_list: D013635:Tantalum