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Charles M, Ejskjaer N, Witte DR, Borch-Johnsen K, Lauritzen T, Sandbaek A.Charles M, et al. Among authors: witte dr.Diabetes Care. 2011 Oct;34(10):2244-9. doi: 10.2337/dc11-0903. Epub 2011 Aug 4.Diabetes Care. 2011.PMID: 21816977Free PMC article.Clinical Trial.