CHINESE JOURNAL OF SURGERY, Volume 39, Issue 6,2001, Pages 422-424, doi:10.3760/j:issn:0529-5815.2001.06.002
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CHINESE JOURNAL OF SURGERY, Volume 39, Issue 6,2001, Pages 449-451, doi:10.3760/j:issn:0529-5815.2001.06.010
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