CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 12, Issue 5,2009, Pages 456-461, doi:10.3760/cma.j.issn.1671-0274.2009.05.009
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 12, Issue 5,2009, Pages 529-530, doi:10.3760/cma.j.issn.1671-0274.2009.05.035