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Ryoo UN, Choi CH, Yoon JY, Noh SK, Kang H, Kim WY, Kim BH, Kim TJ, Lee JW, Lee JH, Kim BG, Bae DS.Ryoo UN, et al.Cancer Res Treat. 2007 Dec;39(4):165-70. doi: 10.4143/crt.2007.39.4.165. Epub 2007 Dec 31.Cancer Res Treat. 2007.PMID: 19746183Free PMC article.