CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 2, Issue 2,1999, Pages 117-118, doi:10.3760/cma.j.issn.1671-0274.1999.02.019
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CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 2, Issue 2,1999, Pages 121-123, doi:10.3760/cma.j.issn.1671-0274.1999.02.022
CHINESE JOURNAL OF GASTROINTESTINAL SURGERY, Volume 2, Issue 2,1999, Pages 109-110, doi:10.3760/cma.j.issn.1671-0274.1999.02.016