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<http://linkedlifedata.com/resource/pubmed/commentcorrection/19672460-18226685> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Gastrointest Endosc. 2008 Feb;67(2):235-44" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/19672460-18226685> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/18226685> .