Carbon dioxide insufflation compared with air insufflation in double-balloon enteroscopy: a prospective, randomized, double-blind trial.
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Gastrointest Endosc. 2011 Apr;73(4):743-9. doi: 10.1016/j.gie.2010.10.003. Epub 2011 Jan 14.
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PMID: 21237455
Clinical Trial.