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Kiefer Y, Schulte C, Tiemann M, Bullerdiek J.Kiefer Y, et al. Among authors: bullerdiek j.Appl Clin Genet. 2012 Mar 12;5:21-8. doi: 10.2147/TACG.S18669. Print 2012.Appl Clin Genet. 2012.PMID: 23776377Free PMC article.