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Tandem MS spectra of [M-2H]2−of tetrasaccharide ΔUA-GlcN-GlcA-GlcNAc.A, EDD spectrum and cleavage map, B, IRMPD spectrum and cleavage map and C, CAD spectrum and cleavage map. Reprinted with permission from reference (84). Copyright 2007 American Chemical Society.
