CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 13, Issue 8,2010, Pages 624-625, doi:10.3760/cma.j.issn.1671-0274.2010.08.025
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 13, Issue 8,2010, Pages 621-622 , doi:10.3760/cma.j.issn.1671-0274.2010.08.023
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