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Koelmel JP, Kroeger NM, Gill EL, Ulmer CZ, Bowden JA, Patterson RE, Yost RA, Garrett TJ.Koelmel JP, et al.J Am Soc Mass Spectrom. 2017 May;28(5):908-917. doi: 10.1007/s13361-017-1608-0. Epub 2017 Mar 6.J Am Soc Mass Spectrom. 2017.PMID: 28265968Free PMC article.