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<http://linkedlifedata.com/resource/pubmed/commentcorrection/20721586-18855060> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Surg Endosc. 2009 Jun;23(6):1331-6" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/20721586-18855060> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/18855060> .