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DeArmond PD, West GM, Huang HT, Fitzgerald MC.DeArmond PD, et al.J Am Soc Mass Spectrom. 2011 Mar;22(3):418-30. doi: 10.1007/s13361-010-0060-1. Epub 2011 Feb 1.J Am Soc Mass Spectrom. 2011.PMID: 21472561Free PMC article.