CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 12, Issue 6,2009, Pages 647-648, doi:10.3760/cma.j.issn.1671-0274.2009.06.044
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 12, Issue 6,2009, Pages 584-587, doi:10.3760/cma.j.issn.1671-0274.2009.06.018
CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 12, Issue 6,2009, Pages 558-561, doi:10.3760/cma.j.issn.1671-0274.2009.06.007