CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 10, Issue 4,2007, Pages 359-361, doi:10.3760/cma.j.issn.1671-0274.2007.04.016
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 10, Issue 4,2007, Pages 383-384, doi:10.3760/cma.j.issn.1671-0274.2007.04.023