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Chen Y, Ntai I, Ju KS, Unger M, Zamdborg L, Robinson SJ, Doroghazi JR, Labeda DP, Metcalf WW, Kelleher NL.Chen Y, et al. Among authors: metcalf ww.J Proteome Res. 2012 Jan 1;11(1):85-94. doi: 10.1021/pr2009115. Epub 2011 Oct 25.J Proteome Res. 2012.PMID: 21978092Free PMC article.