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Birkeland KI, Home PD, Wendisch U, Ratner RE, Johansen T, Endahl LA, Lyby K, Jendle JH, Roberts AP, DeVries JH, Meneghini LF.Birkeland KI, et al. Among authors: endahl la.Diabetes Care. 2011 Mar;34(3):661-5. doi: 10.2337/dc10-1925. Epub 2011 Jan 26.Diabetes Care. 2011.PMID: 21270174Free PMC article.Clinical Trial.