CHINESE JOURNAL OF ONCOLOGY, Volume 25, Issue 4,2003, Pages 320-324, doi:10.3760/j.issn:0253-3766.2003.04.003
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CHINESE JOURNAL OF ONCOLOGY, Volume 25, Issue 4,2003, Pages 316-319, doi:10.3760/j.issn:0253-3766.2003.04.002