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(A) EIC of glycan F1A2G1 with galactose attached to different branches, which were released from human blood serum (B) CID MS/MS spectrum of isomeric structure eluted at 32.8 min, with molecular modeling of the structure. (C) CID MS/MS spectrum of isomeric structure eluted at 34.1 min, with molecular modeling of the structure. Symbols: as in Figure 1.
