Multiple Choice
A series of radiographic images taken of the pharynx,esophagus,stomach,and duodenum after the contrast agent barium has been administered orally is a(n)
A) barium enema.
B) endoscopic ultrasound.
C) upper GI series.
D) Helicobacter pylori antibodies test.
Correct Answer:

Verified
Correct Answer:
Verified
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