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Editor's quiz: GI snapshot
When to leave a stone unturned …
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Footnotes
Competing interests None.
Patient consent Obtained from the patient's guardian.
Ethics approval This study was conducted with the approval of the Institutional Review Board of the National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.
Provenance and peer review Not commissioned; externally peer reviewed.