This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article is being retracted following correspondence from an Investigation Committee at the University of Colorado Denver. An internal investigation into this manuscript by the University of Colorado Denver, found evidence that there was image manipulation and that these actions warrant retraction to correct the scientific record. Bands on blot obscured or removed, apparent when the images are enhanced (Fig 4A p21 band "C" at 24hr, Fig 4B p21 band "C" at 24hr, and Fig 4B Cyclin A band "10" at 48 hr).
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