RETRACTED: Ossifying Fibroma Tumor Stem Cells Are Maintained by Epigenetic Regulation of a TSP1/TGF-β/SMAD3 Autocrine Loop

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the authors. Due to a reader query, it came to our attention that there were duplications of H&E staining images in the paper. Further investigation revealed that, in addition to these duplications, there were multiple instances of inappropriate western blot image adjustment, such as uneven compression of images and removal of background elements. Although we believe that the biological conclusions outlined in the paper are valid, the data processing issues identified mean that the figures presented in the paper do not provide an accurate representation of the original data, and we have therefore concluded that the most appropriate course of action is to retract the paper. The first two authors (H.Q. and C.Q.) have declined to sign the retraction notice. We apologize to our colleagues for any confusion caused.