The role of barium contrast studies in the diagnosis of retroperitoneal tumors.
D001464:Barium; D001466:Barium Sulfate; D006801:Humans; D009369:Neoplasms; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space
D001464:Barium; D001466:Barium Sulfate
BARIUM SULFATE; RETROPERITONEAL SPACE/neoplasms