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<http://linkedlifedata.com/resource/pubmed/commentcorrection/21687337-12196317> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Am J Epidemiol. 2002 Sep 1;156(5):471-82" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/21687337-12196317> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/12196317> .