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Williams BJ, Barlow CK, Kmiec KL, Russell WK, Russell DH. Negative Ion Fragmentation of Cysteic Acid Containing Peptides: Cysteic Acid as a Fixed Negative Charge. Journal of The American Society for Mass Spectrometry. 2011 May 24;22(9):1622–30. doi: 10.1007/s13361-011-0165-1. |