A new roentgenographic method of measuring the retrogastric and retroduodenal spaces: statistical evaluation of reliability and diagnostic utility.
D001464:Barium; D001835:Body Weight; D004386:Duodenum / Q000000981:diagnostic imaging; D006801:Humans; D008722:Methods; D009362:Neoplasm Metastasis; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging*; D013131:Spine; D013223:Statistics as Topic; D013270:Stomach / Q000000981:diagnostic imaging; D013679:Technology, Radiologic
D001464:Barium