title: DIAGNOSIS OF RETROPERITONEAL MASSES BY GASTROINTESTINAL ROENTGENOGRAPHIC MEASUREMENTS: A COMPUTER STUDY.
mesh_terms: D003201:Computers; D001330:Electronic Data Processing; D041981:Gastrointestinal Tract; D006801:Humans; D009369:Neoplasms / Q000175:diagnosis*; D011859:Radiography; D012186:Retroperitoneal Neoplasms; D013223:Statistics as Topic
keywords: AUTOMATIC DATA PROCESSING; COMPUTERS; GASTROINTESTINAL SYSTEM; NEOPLASM DIAGNOSIS; RADIOGRAPHY; RETROPERITONEAL NEOPLASMS; STATISTICS