Barium swallow and meal. I.
SIMON
G
G
D001464:Barium; D001466:Barium Sulfate; D041981:Gastrointestinal Tract / Q000000981:diagnostic imaging*; D062407:Meals; D011859:Radiography
D001464:Barium; D001466:Barium Sulfate
GASTROINTESTINAL SYSTEM/radiography