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Chang GJ, You YN, Park IJ, Kaur H, Hu CY, Rodriguez-Bigas MA, Skibber JM, Ernst RD.Chang GJ, et al. Among authors: you yn.Dis Colon Rectum. 2012 Apr;55(4):371-7. doi: 10.1097/DCR.0b013e31824678e3.Dis Colon Rectum. 2012.PMID: 22426259Free PMC article.