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The "O" sign.
Hoffman CF, Selman LL, Dyer RB. The "O" sign. Abdom Radiol (NY). 2017 May; 42(5):1612-1613.
View in:
PubMed
subject areas
Contrast Media
Fluoroscopy
Foreign-Body Migration
Gastroplasty
Humans
Postoperative Complications
Radiography, Abdominal