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<http://linkedlifedata.com/resource/pubmed/commentcorrection/20449637-15094545> <http://linkedlifedata.com/resource/pubmed/referenceSource> "Spine (Phila Pa 1976). 2004 Feb 15;29(4):470-7; discussion Z6" .
<http://linkedlifedata.com/resource/pubmed/commentcorrection/20449637-15094545> <http://linkedlifedata.com/resource/pubmed/referesTo> <http://linkedlifedata.com/resource/pubmed/id/15094545> .