The colon.
Gelfand
D W
DW
Department of Radiology, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, North Carolina.
D001466:Barium Sulfate; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging*; D015179:Colorectal Neoplasms / Q000000981:diagnostic imaging*; D004733:Enema; D006801:Humans; D011859:Radiography
D001466:Barium Sulfate