The article entitled “Modulation of PGE2-induced EP4 expression on snail signaling and the impact on epithelial-mesenchymal transition: significance of EP4 antagonism” by Kim HN et al., Anticancer Research 31(12): 4347-4357, 2011 is retracted following the terms of a Voluntary Exclusion Agreement between the Division of Investigative Oversight (DIO), the Office of Research Integrity (ORI) at the US Department of Health & Human Services, and Dr. Bhagavathi Narayanan, the corresponding author, based on the discovery of inappropriate duplication of Western blot images in figures 2A, 2B and 5D of the paper, and which were reused in an unfunded grant application.
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