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<http://linkedlifedata.com/resource/pubmed/commentcorrection/21490972-8268773> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Cancer Epidemiol Biomarkers Prev. 1993 Nov-Dec;2(6):555-61" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/21490972-8268773> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/8268773> .