Newer roentgenographic techniques in the diagnosis of retroperitoneal tumors.
D000005:Abdomen; D000008:Abdominal Neoplasms; D009369:Neoplasms; D011027:Pneumoperitoneum; D011028:Pneumoperitoneum, Artificial; D011859:Radiography; D012186:Retroperitoneal Neoplasms
ABDOMEN/neoplasms; PNEUMOPERITONEUM, ARTIFICIAL; ROENTGENOGRAPHY